# Sensors and Modules > Sensors and modules for distance, motion, gas, pressure plus WiFi, GSM, GPS, Bluetooth, RF, LED, display, storage and expansion boards - Shop: [Sigmanortec.ro](https://sigmanortec.ro/en/llms.txt) - Category page: https://sigmanortec.ro/en/sensors-and-modules - Category: Mechatronics and IoT > Sensors and Modules - Prices: RON, VAT included; prices and stock as of 2026-10-22 00:53 (Europe/Bucharest) ## Subcategories - [Distance and Presence Sensors](https://sigmanortec.ro/en/llms/c/111.md): Ultrasonic sensors like HC-SR04, ToF/LIDAR modules VL53L0X, PIR motion sensors and presence radars HLK-LD2410, RCWL-0516 (22 products) - [Temperature and Environmental Sensors](https://sigmanortec.ro/en/llms/c/112.md): Sensors and modules for temperature, humidity and pressure: DHT11/DHT22, DS18B20, BMP280/BMP180, SHT21/SHT35, HTU21D, BME680, SCD41. (32 products) - [Voltage and Current Sensors](https://sigmanortec.ro/en/llms/c/113.md): Sensors and modules for measuring AC/DC voltage, current and power: INA219, INA226, ACS712, ZMPT101B, PZEM-004T and protection modules (30 products) - [Level and Liquid Sensors](https://sigmanortec.ro/en/llms/c/114.md): Sensors for water level, flow, leak detection, water quality (TDS, pH) and soil moisture with relay modules (11 products) - [Motion and Orientation Sensors](https://sigmanortec.ro/en/llms/c/116.md): Modules with motion, orientation, accelerometer, gyroscope, magnetometer, magnetic encoder and tilt sensors (MPU6050, ADXL345, BNO055, etc.) (15 products) - [Light and Optical Sensors](https://sigmanortec.ro/en/llms/c/117.md): Optical sensors and modules: ambient light, UV, color, IR line tracking, fingerprint, barcode, flame, proximity (33 products) - [Sound Sensors](https://sigmanortec.ro/en/llms/c/119.md): Microphone modules and sound sensors: digital I2S INMP441, analog MAX4466, clap switch modules (7 products) - [LED modules](https://sigmanortec.ro/en/llms/c/120.md): LED modules and strips, including addressable WS2812B, MAX7219 matrices, RGB drivers and IR touch sensors (9 products) - [Switching Module](https://sigmanortec.ro/en/llms/c/125.md): MOSFET and power switch modules, touch/IR sensors for ON-OFF control and switching electrical loads (9 products) - [Expansion Module](https://sigmanortec.ro/en/llms/c/129.md): I2C expansion modules, IO port extenders and multiplexers (PCF8574, PCF8575, PCA9548) (6 products) - [Data Storage Module](https://sigmanortec.ro/en/llms/c/131.md): Data storage modules: microSD/SD card slots, MicroSD shields, I2C EEPROM modules and card-based MP3 modules (8 products) - [Clock Module](https://sigmanortec.ro/en/llms/c/132.md): RTC modules (DS1307, DS3231, PCF8563) for real-time clock with I2C interface, some with backup battery (5 products) - [Camera Module](https://sigmanortec.ro/en/llms/c/135.md): Camera modules and boards with image sensors (OV2640, OV7670, ESP32-CAM) for IoT and facial recognition projects (6 products) - [Gas and Air Quality Sensors](https://sigmanortec.ro/en/llms/c/154.md): Sensors and modules for gas, CO2, VOC, dust and air quality: MQ-2/3/4/5/6/7/8/9, MICS, SGP41, SCD41, BME680 (19 products) - [Pressure and Weight Sensors](https://sigmanortec.ro/en/llms/c/155.md): Weight and pressure sensors and modules: load cells, HX711 modules, FSR and vacuum pressure sensors (6 products) - [Biomedical Sensors](https://sigmanortec.ro/en/llms/c/156.md): Sensors and modules for vital signs: EMG with electrodes, optical pulse/oximeter MAX30100, ECG/EKG with AD8232 (4 products) - [ADC and DAC Modules](https://sigmanortec.ro/en/llms/c/221.md): Analog-to-digital and digital-to-analog converter modules: ADS1115, ADS1015, ADS1256, PCF8591, data acquisition via I2C, RS485, UART (8 products) - [GSM](https://sigmanortec.ro/en/llms/c/124.md): GSM/GPRS/4G modules and dev boards (SIM800, SIM808, A9G, ESP32-SIM7670G) plus GSM relays for IoT (10 products) - [Antennas](https://sigmanortec.ro/en/llms/c/210.md): RF antennas and accessories: 433MHz, 868MHz, 2.4GHz, 4G LTE, GPS, coaxial cables, SMA/IPEX connectors and power splitters. (9 products) - [WiFi Modules](https://sigmanortec.ro/en/llms/c/193.md): WiFi modules like ESP8266 and ESP32 for wireless connectivity, IoT, shields and gateways (9 products) - [GPS and GNSS Modules](https://sigmanortec.ro/en/llms/c/192.md): GPS/GNSS modules for positioning and navigation: NEO-M8N, NEO6MV2, Quectel RTK modules, drone compass modules and boards with built-in GSM/GPS. (11 products) - [Smart Home Modules](https://sigmanortec.ro/en/llms/c/191.md): Smart home modules and controllers: SONOFF wireless relays, touch switches, ESP32-S3 IR controllers for Home Assistant (3 products) - [RF and Radio Modules](https://sigmanortec.ro/en/llms/c/188.md): RF and LoRa modules (433/868MHz), NRF24L01 and CC1101 transceivers, remote controls, radio relays and FM/AM radio kits (27 products) - [Bluetooth Modules](https://sigmanortec.ro/en/llms/c/176.md): Bluetooth modules for wireless communication: HC-05, HC-06, BLE, beacons, stereo audio modules and Bluetooth amplifiers. (19 products) - [Audio and Sound](https://sigmanortec.ro/en/llms/c/32.md): Audio amplifiers, Bluetooth modules, speakers, microphones, buzzers and MP3 modules for sound projects (63 products) - [Display and LCD](https://sigmanortec.ro/en/llms/c/30.md): LCD, OLED, TFT, e-paper displays, 7-segment LED displays and HDMI monitors for Arduino and Raspberry Pi (49 products) - [AI Modules](https://sigmanortec.ro/en/llms/c/229.md): AI modules for facial recognition, voice recognition and voice assistants based on ESP32-S3 (4 products) - [Proximity and Photoelectric Sensors](https://sigmanortec.ro/en/llms/c/252.md): Inductive and photoelectric IR/laser sensors (NPN/PNP) for proximity, obstacle and line detection, including Omron E3Z (26 products) - [Magnetic and Hall Sensors](https://sigmanortec.ro/en/llms/c/253.md): Magnetic and Hall sensor modules: AS5600/TLE5012 encoders, digital/analog Hall sensors, reed switches, ACS758/WCS1800/WCS1600 current sensors, HMC5883L magnetometer (11 products) - [Capacitive Touch Sensors](https://sigmanortec.ro/en/llms/c/255.md): Capacitive touch sensors and modules (TTP223, TTP226, TTP229) for touch buttons and dimmable control (5 products) ## Products (442) ### Atomizer 20mm Ultrasonic Mist - Page: https://sigmanortec.ro/en/atomizer-20mm-ultrasonic-mist - Details: https://sigmanortec.ro/en/llms/p/23.md - Price: 7.73 RON - Availability: In stock; 1-2 zile - Reference: 33224 · EAN: 5942071776291 Piezoelectric element for generating ultrasonic mist from water, ideal for aroma diffusers, humidifiers and DIY projects. It operates at 2.4MHz, offers atomization up to 380 ml/h, has an outer diameter of 20 mm with a gasket and a disc of 16 mm, impedance below 2 ohms for good efficiency. Requires a driver with the right frequency. Atomizer, aroma diffuser, piezo type (piezoelectric) for producing mist with water by ultrasound at a frequency of 2.4MHz Specifications: Resonance frequency: 1.7MHz Resonance impedance: ### RFID module kit 13.56MHz, RC522 compatible, HW-126, 3.3V - Page: https://sigmanortec.ro/en/rfid-module-kit-1356mhz-rc522-33v - Details: https://sigmanortec.ro/en/llms/p/267.md - Price: 9.53 RON - Availability: In stock; 1-2 zile - Reference: 22118 · EAN: 5944343212223 - Specifications: Input Voltage: 3.3 V Compatible RC522 RFID module for Arduino projects and other development boards, ideal for reading and writing 13.56MHz cards and key fobs, includes a card and key fob tag plus pins. It operates at 3.3V with low power consumption, supports multiple MIFARE card types, offers fast transfer up to 10Mbit/s, and works reliably between -20 and 80C. The compatible RFID RC522 kit is a complete solution for projects involving contactless identification, providing everything needed to get started quickly: a compatible RFID RC522 module, a 13.56MHz RFID card, and a 13.56MHz RFID key fob, along with header pins for soldering. ### Voltage signal amplifier module, AD620, microvolt, 3-12VDC - Page: https://sigmanortec.ro/en/voltage-signal-amplifier-module-ad620-microvolt-3-12vdc - Details: https://sigmanortec.ro/en/llms/p/1804.md - Price: 20.27 RON - Availability: In stock; 1-2 zile - Reference: 9693 · EAN: 5948392382098 - Specifications: Type: Amplifier; tension: AD; Supply Voltage: 3; Maximum Input Voltage: 12 Compact solution for amplifying very small signals, useful in measurements and sensors where noise can affect accuracy. Operates at 3-12VDC, adjustable gain 1.5-1000x with adjustable zero, offers low offset and high common mode rejection for clean signal, includes negative voltage output for flexibility in circuits. The AD620 Microvolt amplifier module is an optimized solution for amplifying low voltage signals. It improves input signals in the presence of noise and reduces the need for external components. Due to its ability to amplify small signals and its high resistance to noise, it is ideal for applications that require high quality signal processing. ### DIY kit with Miller tube meter, assembled - Page: https://sigmanortec.ro/en/diy-kit-with-miller-tube-meter-assembled - Details: https://sigmanortec.ro/en/llms/p/2000.md - Price: 502.30 RON - Availability: In stock; 1-2 zile - Reference: 9819 · EAN: 5941628891517 Assembled Geiger-Miller counter module, plug-and-play, for measuring gamma and beta radiation. Works standalone at 5VDC or connected to Arduino/other boards, with sound and LED alarms. Supports M4011, STS-5, SBM20, J305 tubes, operating voltage 330-600V. Gamma range: 20mR/h~120mR/h; soft beta: 100-1800 variable points. Dimensions 118 x 63 mm. ### Rotary potentiometer module, 10K, Linear, 3-5V - Page: https://sigmanortec.ro/en/rotary-potentiometer-module-10k-linear-3-5v - Details: https://sigmanortec.ro/en/llms/p/2273.md - Price: 13.65 RON - Availability: In stock; 1-2 zile - Reference: 88135 · EAN: 5940932286675 - Specifications: Input Voltage: 3 - 5 V; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English. Rotary potentiometer module with a 10K linear potentiometer, rotation up to 280 degrees, for analog control in Arduino or other development board projects. Powered by 3-5V DC, analog OUT output proportional to shaft position, GND/VCC/OUT pins with 2.54mm spacing, dimensions 24 x 23.5 mm, suitable for breadboard mounting. ### Atomizer Module, 4 channels 20mm, USB-C, 5V - Page: https://sigmanortec.ro/en/atomizer-module-4-channels-20mm-usb-c-5v - Details: https://sigmanortec.ro/en/llms/p/2186.md - Price: 28.51 RON - Availability: In stock; 1-2 zile - Reference: 88025 · EAN: 5944465437597 - Specifications: Input Voltage: 5 V; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English. Atomization module with 4 channels and 20mm piezo discs, generates fine mist for humidifying plants, fountains or DIY projects, simple power supply via USB-C at 5V, offers simultaneous, dynamic or incremental spray modes, uses microporous foil for efficient nebulization and extended coverage. The atomization module consists of an electronic board and 4 20mm piezo discs that, in contact with water, nebulize the liquid, being ideal for applications ranging from plant humidification to creative DIY projects such as generating mist in a fountain or ambient humidifier. It benefits from several spray modes such as single, dynamic or multiple spray. ### Ultrasonic atomizer module, 20mm, MicroUSB - Page: https://sigmanortec.ro/en/ultrasonic-atomizer-module-20mm-microusb - Details: https://sigmanortec.ro/en/llms/p/1385.md - Price: 9.92 RON - Availability: In stock; 1-2 zile - Reference: 9279 · EAN: 5940252751532 Ultrasonic atomizer kit powered by 5V via MicroUSB, with a 20mm piezoelectric disc and a sponge stick for water supply. Can be used as a mist maker or humidifier. Dispersion up to 35 ml/h, power consumption 2W, operation under 36 dB. Do not use without liquid, as this will damage the piezoelectric element. ### Ultrasonic mist atomizer kit with LED, 24V - Page: https://sigmanortec.ro/en/ultrasonic-mist-atomizer-kit-with-led-24v - Details: https://sigmanortec.ro/en/llms/p/915.md - Price: 62.51 RON - Availability: In stock; 1-2 zile - Reference: 7755013 · EAN: 5944531567814 - Specifications: Input Voltage: 24 V; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English. Submersible ultrasonic mist generator kit producing cold fog, with 12 multicolour LEDs that change automatically. Operates at 24V DC, powered via a 220VAC power supply. Compact construction, suitable for mounting in a water container. Can be used to create fog effects in decorative fountains or as an aroma diffuser, with the mist dispersing quickly into the surrounding space. ### Sensor Starter Kit, Arduino compatible - Page: https://sigmanortec.ro/en/sensor-starter-kit-arduino-compatible - Details: https://sigmanortec.ro/en/llms/p/247.md - Price: 118.47 RON - Availability: In stock; 1-2 zile - Reference: 33073 · EAN: 5946432695047 Sensor Starter Kit, Arduino compatible (ref. 33073), includes over 35 KY-series modules covering motion, vibration, sound, light, temperature and humidity detection, switches, joystick, encoder, 5V relay and IR emitter/receiver. Suited for quick learning, breadboard prototyping and DIY or industrial electronic projects. ### ToF Sensor Module VL53L5CX, 8x8 zone, I2C, 3–5 VDC - Page: https://sigmanortec.ro/en/tof-sensor-module-vl53l5cx-8x8-zone-i2c-35-vdc - Details: https://sigmanortec.ro/en/llms/p/2551.md - Price: 129.37 RON - Availability: In stock; 1-2 zile - Reference: 88260 · EAN: 5947738338294 - Specifications: Chipset: VL53L5CX High-precision VL53L5CX Time-of-Flight sensor with configurable multi-zone detection up to 8x8 (64 zones), measures distance up to 4 meters using an invisible VCSEL laser and operates at frequencies up to 60 Hz. I2C interface, 3 - 5 VDC power supply, compatible with Arduino, ESP32, Raspberry Pi and other platforms, suitable for robotics, environment mapping, obstacle detection and smart systems. The VL53L5X V2 sensor module integrates the VL53L5CX chip, a Time-of-Flight (ToF) sensor developed by STMicroelectronics, which measures distance by the flight time of light emitted by a VCSEL laser. ### FM radio transmitter module, DSP PLL, 87–108 MHz, LCD, campus mode 76–108 MHz - Page: https://sigmanortec.ro/en/fm-radio-transmitter-module-dsp-pll-87108-mhz-lcd-campus-mode-76108-mhz - Details: https://sigmanortec.ro/en/llms/p/2485.md - Price: 62.13 RON - Availability: In stock; 1-2 zile - Reference: 88307 · EAN: 5948723808075 - Specifications: Frequency band: 87 - 108 MHz; Circuit technology: DSP PLL; Module function: Transmitator FM FM radio transmitter module with DSP and PLL technology, with LCD display and 5 buttons, transmits stereo on the 87.0 - 108.0 MHz band or, in campus mode, on the 76.0 - 108.0 MHz band, with an output power of 100 mW. It accepts audio signal from LINE, USB, or the built-in MIC microphone, is powered by 3.0 - 5.0 VDC, and uses a 75 cm antenna. Suitable for wireless microphone, audio broadcasting from a phone or PC, and short-range DIY broadcasting projects. This FM radio transmitter module uses digital signal processing (DSP) technology and a phase-locked loop (PLL) to transmit the signal without frequency drift and with good sound quality. ### FM DSP PLL radio receiver module, 87–108 MHz with LCD, Campus mode 76–108 MHz, stereo output 2x3W - Page: https://sigmanortec.ro/en/fm-dsp-pll-radio-receiver-module-87108-mhz-with-lcd-campus-mode-76108-mhz-stereo-output-2x3w - Details: https://sigmanortec.ro/en/llms/p/2486.md - Price: 77.59 RON - Availability: In stock; 1-2 zile - Reference: 88308 · EAN: 5949474674896 - Specifications: Frequency band: 87 - 108 MHz; Circuit technology: DSP PLL; Module function: Receptor FM FM stereo radio receiver module with DSP and PLL, LCD display and two rotary encoders VOL and FRE for volume and tuning, ideal for active speakers, wireless microphones, school public address systems and DIY projects. It covers the standard 87.0 - 108.0 MHz band, extendable to 76.0 - 108.0 MHz in Campus mode for university stations, with 500 mW stereo audio output on headphones or 2x3 W on speakers, UART serial control and automatic settings memory. ### MCP23017 16-bit I2C I/O Expander Module CJMCU-2317 - Page: https://sigmanortec.ro/en/mcp23017-16-bit-i2c-i-o-expander-module-cjmcu-2317 - Details: https://sigmanortec.ro/en/llms/p/2467.md - Price: 23.07 RON - Availability: In stock; 1-2 zile - Reference: 88289 · EAN: 5943519644806 - Specifications: Communication interface: I2C; Main chip: MCP23017; Number of I/O channels: 16 The MCP23017 CJMCU-2317 expander module adds 16 digital input/output pins to a development board via the I2C interface, combining the MCP23017 circuit with two rows of pins for quick breadboard mounting. It is suitable when the number of GPIO pins on the microcontroller is not enough, for example to control multiple relays, LEDs, LED displays, buttons, or switches, or to read a large number of digital inputs. The MCP23017 chip is a 16-bit I2C expander organized into two 8-pin ports, GPA0 - GPA7 and GPB0 - GPB7, with each pin individually configurable as input or output and featuring an internal 100 kOhm pull-up resistor that can be enabled in software. ### MCP4725 DAC module, I2C, 12-bit, with EEPROM, HW-315 - Page: https://sigmanortec.ro/en/mcp4725-dac-module-i2c-12-bit-with-eeprom-hw-315 - Details: https://sigmanortec.ro/en/llms/p/2468.md - Price: 11.59 RON - Availability: In stock; 1-2 zile - Reference: 88290 · EAN: 5941702390400 - Specifications: Main IC: MCP4725; Communication interface: I2C; Converter resolution: 12 bit Breakout module with the MCP4725 converter, a 12-bit DAC with I2C interface, which converts a digital value into a real analog voltage on the OUT pin, useful for signal generation, adjustable voltage references, and analog control in projects with Arduino, ESP32, STM32, or Raspberry Pi. It features internal EEPROM memory, an I2C address selectable via the ADDR jumper, and disableable pull-ups for setups with multiple modules on the same bus, with a supply of 2.7 - 5.5 VDC. The MCP4725 module is a 12-bit digital-to-analog converter with an I2C interface, which allows a development board or a computer to produce a real analog voltage at the output, not just a filtered PWM signal. ### ADS1256 24-bit data acquisition module with STM32F103C8T6, 8 channels, RS232, UART - Page: https://sigmanortec.ro/en/ads1256-24-bit-data-acquisition-module-with-stm32f103c8t6-8-channels-rs232-uart - Details: https://sigmanortec.ro/en/llms/p/2452.md - Price: 205.17 RON - Availability: In stock; 1-2 zile - Reference: 88274 · EAN: 5942921240330 - Specifications: Microcontroller: STM32F103C8T6; Communication interface: RS232, UART; Number of channels: 8; ADC resolution: 24 bit Compact solution for precise measurements of weak analog signals from sensors, load cells or Wheatstone bridges, with 24-bit ADS1256 ADC, up to 30 kSPS and PGA 1-64 for amplification, 8 channels configurable as single-ended or differential, fast data transmission via RS232 DB9 or UART to PC, PLC or development boards, integrated stable 2.5 V reference. The high-precision data acquisition module combines the ADS1256 analog-to-digital converter and the STM32F103C8T6 microcontroller on the same board, providing a complete solution for reading weak analog signals from sensors, load cells, thermocouples, Wheatstone bridges, or precision voltage sources. ### Ultrasonic Sensor HY-SRF05, 5 Pins, 2–450 cm, 5V - Page: https://sigmanortec.ro/en/ultrasonic-sensor-hy-srf05-5-pins-2450-cm-5v - Details: https://sigmanortec.ro/en/llms/p/2453.md - Price: 12.64 RON - Availability: In stock; 1-2 zile - Reference: 88282 · EAN: 5946704104390 - Specifications: Input Voltage: 5 V; Number of pins: 5; Measuring distance: 2 - 450 cm Ultrasonic module for contactless distance measurement in robots, automation, and Arduino projects, with a range of 2-450 cm and a detection angle of up to 15°. It operates at 5V, uses the TRIG ECHO protocol compatible with HC-SR04, and has 5 pins with OUT for selecting standard mode or single-pin mode. It provides TTL output and good accuracy under ideal conditions. The HY-SRF05 ultrasonic sensor is a non-contact distance measurement module, functionally compatible with the popular HC-SR04. It uses the same TRIG/ECHO control protocol and also includes an OUT pin for selecting the operating mode. ### GPS module, NMEA 0183, RS232, 1Hz, 5V - Page: https://sigmanortec.ro/en/gps-module-nmea-0183-rs232-1hz-5v - Details: https://sigmanortec.ro/en/llms/p/2443.md - Price: 141.73 RON - Availability: In stock; 1-2 zile - Reference: 88266 · EAN: 5942349353025 - Specifications: Communication interface: RS232; Supply voltage: 5 V; Protocol: NMEA 0183; Update rate: 1 Hz GPS receiver with RS232 output and NMEA 0183 messages, ideal for navigation, monitoring and time synchronization in industrial and maritime systems. It offers 1 Hz update, 66 channels with GPS QZSS support and SBAS corrections for an accuracy of about 2 m, has an active antenna integrated in an IP67 enclosure and is powered at 5 V, with a 2.5 m shielded cable for quick connection. This QUESCAN GPS receiver with RS232 output and 5 VDC power supply (recommended) is a navigation and synchronization solution for industrial and maritime applications. ### AC energy measurement module, PZEM-004T-100A, v3.0, 100A, TTL, 80–260V - Page: https://sigmanortec.ro/en/ac-energy-measurement-module-pzem-004t-100a-v30-100a-ttl-80260v - Details: https://sigmanortec.ro/en/llms/p/2450.md - Price: 84.91 RON - Availability: In stock; 1-2 zile - Reference: 88277 · EAN: 5949068078659 - Specifications: Nominal Current: 100 A; Input Voltage: 80 - 260 V; Input Voltage Type: AC; Model: PZEM-004T-100A v3.0; Communication interface: TTL The module for monitoring consumption on single-phase AC networks, ideal for automation and IoT projects, measures voltage 80-260VAC, current 0-100A with an external transformer, power, frequency, power factor, and energy up to 9999.99kWh, communicates Modbus-RTU via UART TTL 9600, and provides optocoupled isolation for safe integration with Arduino, ESP32, or PC. The PZEM-004T-100A module is a multifunction meter for single-phase AC networks, designed for accurate monitoring of the electrical energy consumption of an installation or an individual device. It measures voltage, current, active power, power factor, frequency, and consumed active energy simultaneously. ### High-power MOSFET switch module, 100V 300A, 5–18V control - Page: https://sigmanortec.ro/en/high-power-mosfet-switch-module-100v-300a-518v-control - Details: https://sigmanortec.ro/en/llms/p/2451.md - Price: 10.78 RON - Availability: In stock; 1-2 zile - Reference: 88273 · EAN: 5943419070842 - Specifications: Maximum Input Voltage: 100 V; Maximum Output Current: 300 A; Control voltage: 5 - 18 V Switch high-power DC loads quickly and directly from a logic or PWM signal, without mechanical relays, supporting up to 100V and 300A peaks. Based on the AOTL66912 MOSFET with very low on-resistance for reduced losses, it is driven at 5–18V, ideally 10–12V at high currents, low-side, on an ultra-compact 14x15mm board. The MOSFET power transistor switch module is a compact solution for controlling high-current DC loads. It is intended for electronics enthusiasts and engineers who want to turn motors, LED strips, and other power consumers on, off, or adjust them directly from a microcontroller, without mechanical relays and without moving parts. ### Bluetooth proximity switch module, with relay, XY-MB02YF, 5V - Page: https://sigmanortec.ro/en/bluetooth-proximity-switch-module-with-relay-xy-mb02yf-5v - Details: https://sigmanortec.ro/en/llms/p/2432.md - Price: 74.51 RON - Availability: In stock; 1-2 zile - Reference: 88253 · EAN: 5944778073154 - Specifications: Model: XY-MB02YF; Communication interface: Bluetooth; Supply voltage: 5 V; Output type: Releu Smart proximity switch with Bluetooth BLE, automatically activates a bistable relay when the phone connects and turns off the load after leaving range or disabling Bluetooth. Works without an app, compatible with iOS and Android, has very low power consumption thanks to the latching relay, supports control of up to 10A, and allows advanced settings via AT commands over UART. The XY-MB02YF module is an intelligent proximity switch that automatically detects the user’s presence via a Bluetooth connection and operates a bistable (latching) relay to control a load circuit. ### Serial-to-WiFi Converter Module, Sinilink, XY-WFPOW, ESP8285H16 - Page: https://sigmanortec.ro/en/serial-to-wifi-converter-module-sinilink-xy-wfpow-esp8285h16 - Details: https://sigmanortec.ro/en/llms/p/2433.md - Price: 83.56 RON - Availability: In stock; 1-2 zile - Reference: 88254 · EAN: 5945186570242 - Specifications: Model: XY-WFPOW; Main IC: ESP8285H16; Communication interface: WiFi Compact WiFi module with ESP8285H16 that adds remote control and real-time monitoring to Sinilink programmable power supplies, mounts directly on the board via a dedicated connector, communicates via 3.3V UART with a ModBUS bridge for commands and telemetry, operates at 3.3-5V with internal regulation, and supports advanced integration through alternative firmware such as ESPHome or Tasmota. The XY-WFPOW module is a compact WiFi control board, built around the ESP8285H16 chip, designed to add wireless connectivity to Sinilink programmable power supplies and turn them into smart devices, remotely controllable over a local network or through the cloud. ### MAX31865 Temperature Sensor Module, PT100 Sensor, 3-5V - Page: https://sigmanortec.ro/en/max31865-temperature-sensor-module-pt100-sensor-3-5v - Details: https://sigmanortec.ro/en/llms/p/2434.md - Price: 57.41 RON - Availability: In stock; 1-2 zile - Reference: 88256 · EAN: 5947936582062 - Specifications: Sensor type: PT100; Main IC: MAX31865; Supply voltage: 3 - 5 V MAX31865 RTD-to-digital converter module for PT100 sensors, 3-5V supply, SPI interface (CLK, SDO, SDI, CS). Internal 15-bit ADC, 0.03125°C resolution, ±0.5°C accuracy, maximum conversion time 21 ms. Measurement range -200~850°C, installed reference resistor 430Ω for PT100. Automatic broken wire/short circuit detection, ±45V input protection. Compatible with Arduino, ESP32, STM32, Raspberry Pi. ### WS2812B addressable LED strip, IP20, 10 cm - Page: https://sigmanortec.ro/en/ws2812b-addressable-led-strip-ip20-10-cm - Details: https://sigmanortec.ro/en/llms/p/2440.md - Price: 4.63 RON - Availability: In stock; 1-2 zile - Reference: 88262 · EAN: 5942218326273 - Specifications: Length: 10 cm; Protection rating: IP20; LED chip type: WS2812B Compact solution for RGB lighting effects controlled in DIY and ambient projects, with 6 SMD5050 LEDs per 10 cm, each pixel individually addressable through the integrated WS2812B controller. It operates at 5V and is easily controlled through a single data pin with Arduino, ESP32, or Raspberry Pi. Cut spacing at each LED, IP20 for indoor use. The WS2812B addressable LED strip, without silicone, is a versatile and efficient solution for controlled lighting projects, made with SMD 5050 LEDs that integrate the WS2812B controller directly into each LED body. ### IR touch sensor, LED strip, contactless detection, 5-24V - Page: https://sigmanortec.ro/en/ir-touch-sensor-led-strip-contactless-detection-5-24v - Details: https://sigmanortec.ro/en/llms/p/2421.md - Price: 38.03 RON - Availability: In stock; 1-2 zile - Reference: 88224 · EAN: 5947481595326 - Specifications: tension: AD; Supply Voltage: 5; Maximum Input Voltage: 24; Sensor type: Tactil IR IR touch sensor (ref. 88224) for contactless control of LED strips, detecting at 10-20 mm or via hidden mounting behind wood, glass or plexiglass up to 5 cm thick. Power supply 5-24V DC, max current 3A (72W at 24V), standby consumption ~100 uA. Board size 32x32 mm, wire length 130 mm, 4 jumper-selectable modes (V1, G2) including ON/OFF and continuous dimming, factory default ON/OFF with dimming. ### SIM808 development module, GSM-GPRS-GPS-Bluetooth, 5–25V - Page: https://sigmanortec.ro/en/sim808-development-module-gsm-gprs-gps-bluetooth-525v - Details: https://sigmanortec.ro/en/llms/p/2422.md - Price: 132.69 RON - Availability: In stock; 1-2 zile - Reference: 88227 · EAN: 5943328976884 - Specifications: tension: AD; Supply Voltage: 5; Maximum Input Voltage: 25; Chipset: SIM808; Communication interfaces: GSM, GPRS, GPS, Bluetooth Development board for communications and localization, ideal for IoT and telemetry projects. It offers quad-band GSM GPRS, precise GPS with fast fix, and Bluetooth, with control via AT commands over UART with autobaud. The UART logic level is selectable at 1.25V, 3.3V, or 5V via VMCU, compatible with Arduino, STM32, ESP32, and Raspberry Pi. Includes GSM and GPS antennas. The SIM808 development module integrates the SIM808 chip from SIMCom, providing quad-band GSM/GPRS communication (850/900/1800/1900 MHz), a GPS receiver with 22 tracking channels and 66 acquisition channels, as well as Bluetooth connectivity. ### IR photoelectric sensor module, DS30P2, PNP, NC, 30 cm, 6–36 V - Page: https://sigmanortec.ro/en/ir-photoelectric-sensor-module-ds30p2-pnp-nc-30-cm-636-v - Details: https://sigmanortec.ro/en/llms/p/2429.md - Price: 32.95 RON - Availability: In stock; 1-2 zile - Reference: 88251 · EAN: 5949155469469 - Specifications: Supply voltage: 6 - 36 VDC; Contact type: NC; Sensor output type: PNP; Detection distance: 30 cm IR photoelectric sensor for proximity detection in industrial applications, operates by diffuse reflection without a reflector, wide 6-36V DC supply for easy integration with PLCs and microcontrollers. It offers a 3-wire PNP NC output, adjustable distance up to 30 cm and fast 2 ms response, M18 housing with IP67 protection and status LED for quick verification. The industrial M18 photoelectric sensor is designed for proximity detection applications in demanding industrial environments. It uses a diffuse reflection detection method, emitting a 660 nm infrared beam and receiving light reflected directly from the surface of the target object, without requiring a separate reflector or receiver. ### AI Voice Assistant Module, ESP32 S3, Audio, Xiaozhi - Page: https://sigmanortec.ro/en/ai-voice-assistant-module-esp32-s3-audio-xiaozhi - Details: https://sigmanortec.ro/en/llms/p/2430.md - Price: 157.29 RON - Availability: In stock; 1-2 zile - Reference: 88229 · EAN: 5946306217788 - Specifications: Microcontroller: ESP32-S3 Compact solution for projects with AI voice assistant and display, based on a dual-core ESP32-S3 at 240 MHz with 16MB Flash and 8MB PSRAM for fast response. Includes a 1.54" LCD, integrated microphone, and ES8311 audio codec for natural conversations with an external speaker. Offers 2.4 GHz Wi-Fi and Bluetooth 5 LE, and can be easily programmed via USB-C in Arduino IDE, ESP-IDF, or MicroPython. The Xiaozhi ESP32-S3 AI module is a compact, all-in-one solution for developing smart devices with voice interaction and visual display, intended for electronics enthusiasts, developers, and hobbyists who want to explore the world of AI assistants on affordable hardware. ### Flex Sensor 2.2 inch, Analog, for robotic glove - Page: https://sigmanortec.ro/en/flex-sensor-22-inch-analog-for-robotic-glove - Details: https://sigmanortec.ro/en/llms/p/2411.md - Price: 143.26 RON - Availability: In stock; 1-2 zile - Reference: 88275 · EAN: 5944074671962 - Specifications: Length: 2.2 inch; Output signal type: Analogic Analog flex sensor, 2.2 inch, overall dimensions 73.66 x 6.35 mm, 2-Pin interface with 0.1 inch pitch. Resistance when straight ~25K ohm, increasing to 45K-125K ohm when bent, tolerance 30%. Rated power 0.5W, peak power 1W, over 1,000,000 bend cycles, operating range -35 to +80C. Compatible with Arduino, STM32, ESP32 and any platform with ADC input. Suitable for robotic gloves and wearable projects. ### Absolute orientation sensor module, 9 axes, GY-BNO055, IIC, Serial, 3-5V - Page: https://sigmanortec.ro/en/absolute-orientation-sensor-module-9-axes-gy-bno055-iic-serial-3-5v - Details: https://sigmanortec.ro/en/llms/p/2414.md - Price: 103.70 RON - Availability: In stock; 1-2 zile - Reference: 88276 · EAN: 5940849801978 - Specifications: Supply voltage: 3 - 5 V; Integrated circuit: BNO055; Communication interface: I2C, Serial; Number of axes: 9 Compact module for measuring absolute orientation on 9 axes, ideal for robotics, navigation, and wearable devices. It performs sensor fusion directly on-chip for stable and fast data, and includes an accelerometer, gyroscope, and magnetometer with an ARM Cortex-M0+ processor. It operates at 3-5V and communicates easily via I2C or UART, compatible with Arduino, ESP32, STM32, and Raspberry Pi. The GY-BNO055 module is a compact and intelligent solution for measuring absolute orientation in three-dimensional space, intended for robotics projects, navigation systems, wearable devices, and industrial applications that require high-precision motion data. ### 7-Inch Touchscreen Monitor, Capacitive, HDMI, IPS, 1024x600, Compatible with Raspberry Pi - Page: https://sigmanortec.ro/en/7-inch-touchscreen-monitor-capacitive-hdmi-ips-1024x600-compatible-with-raspberry-pi - Details: https://sigmanortec.ro/en/llms/p/2419.md - Price: 435.73 RON - Availability: In stock; 1-2 zile - Reference: 88220 · EAN: 5943560581754 - Specifications: Compatibility: Raspberry Pi; Screen size: 7 inch; Resolution: 1024x600 px; Panel type: IPS; Touchscreen type: Capacitiv; Video interface: HDMI 7-inch touchscreen monitor with IPS panel, 1024x600 px resolution, 178° viewing angle. Capacitive touchscreen with GT911 controller, supports up to 5 touch points. HDMI video interface, power and touch signal via Micro-USB. Built-in stereo speakers and 3.5 mm audio jack. Compatible with Raspberry Pi, features threaded holes for direct mounting of the board. ### AI Voice Assistant Module, with ESP32 S3, LCD 1.54inch, Audio - Page: https://sigmanortec.ro/en/ai-voice-assistant-module-with-esp32-s3-lcd-154inch-audio - Details: https://sigmanortec.ro/en/llms/p/2403.md - Price: 154.70 RON - Availability: Out of stock - Reference: 88239 · EAN: 5941795638236 - Specifications: Screen size: 1.54 inch; Chip / Controller: ESP32-S3; Audio features: Da Compact solution for voice assistant projects with display, based on ESP32-S3, offers Wi-Fi and Bluetooth for quick integration into smart home and prototypes, includes ES8311 audio codec with integrated microphone and speaker output, displays the conversation and status on a 1.54-inch color LCD screen, supports switching between AI models such as Qwen, DeepSeek, and Doubao via xiaozhi.me, and is easy to program via USB-C. The Xiaozhi AI ESP32-S3 module is a compact, all-in-one solution for developing smart devices with voice interaction and visual display, designed for electronics enthusiasts, developers, and hobbyists who want to explore the world of AI assistants on affordable hardware. ### IR Camera Module, GC0308, 0.3MP, Plug-and-Play, USB 5V - Page: https://sigmanortec.ro/en/ir-camera-module-gc0308-03mp-plug-and-play-usb-5v - Details: https://sigmanortec.ro/en/llms/p/2404.md - Price: 107.73 RON - Availability: In stock; 1-2 zile - Reference: 88240 · EAN: 5940307569013 - Specifications: Input Voltage: 5 V; Sensor resolution: 0.3 MP; Communication interface: USB; Chip / Controller: GC0308 Compact IR camera module for clear close-range captures, ideal for IoT applications, access control, or QR scanning. It offers VGA 0.3MP image quality with an 80-degree angle, up to 120 fps for smooth streaming, 850 nm IR LEDs for night vision, and USB 5V plug-and-play UVC connectivity, compatible with Windows, Linux, macOS, Android, and Raspberry Pi. The GC0308-Camera module is a compact and high-performance solution, designed for applications that require close-range image capture and operation in low-light conditions or even total darkness. ### WiFi Probe Mode, Passive Sniffer, MAC Addresses, TZ-DT06, ESP M2,5V - Page: https://sigmanortec.ro/en/wifi-probe-mode-passive-sniffer-mac-addresses-tz-dt06-esp-m25v - Details: https://sigmanortec.ro/en/llms/p/2407.md - Price: 26.20 RON - Availability: In stock; 1-2 zile - Reference: 88244 · EAN: 5945625947369 - Specifications: Input Voltage: 5 VDC; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English.; Model: TZ-DT06; Communication interface: WiFi Compact module for passive 802.11 sniffing, captures MAC addresses from probe requests for monitoring nearby WiFi devices without network association. Quickly transmits data over UART in hex format with timestamp and CRC, has a FIFO buffer to prevent losses, and an adjustable RSSI threshold for distance filtering. Compatible with 3.3V or 5V, ideal for pedestrian traffic analysis and presence detection. The WiFi Probe TZ-DT06 module is a compact and efficient solution for passive capture of MAC addresses from 802.11 probe request frames, enabling identification and monitoring of nearby WiFi devices without requiring an active network connection or association with an access point. ### 3.5 inch TFT LCD Display, ILI9486, 480x320, Arduino compatible - Page: https://sigmanortec.ro/en/35-inch-tft-lcd-display-ili9486-480x320-arduino-compatible - Details: https://sigmanortec.ro/en/llms/p/2393.md - Price: 127.13 RON - Availability: In stock; 1-2 zile - Reference: 44007 · EAN: 5947093462535 - Specifications: Compatibility: Arduino; Screen size: 3.5 inch; Display type: TFT LCD; Resolution: 480x320 px; Controller / Driver: ILI9486 3.5 inch TFT LCD display module with ILI9486 controller, 480x320 px resolution, 65K colors and 16-bit parallel interface. Plugs directly onto the Arduino Mega 2560 pins, plug-and-play, with integrated 5V/3.3V logic level conversion. Includes a microSD slot (SPI) for images/data, but has no touch function. Active area 73.44x48.96 mm, PCB dimensions 96.6x60.3 mm. ### BME280 Sensor Module, Pressure, Temperature, and Humidity, GY-BME280, 3.3V - Page: https://sigmanortec.ro/en/bme280-sensor-module-pressure-temperature-and-humidity-gy-bme280-33v - Details: https://sigmanortec.ro/en/llms/p/2397.md - Price: 49.80 RON - Availability: In stock; 1-2 zile - Reference: 88269 · EAN: 5946541672236 - Specifications: Model: GY-BME280; Supply voltage: 3.3 V; Measured parameters: Presiune, Temperatura, Umiditate; Sensor chip: BME280 Precision digital sensor for simultaneous measurement of pressure, temperature, and humidity, ideal for weather stations, environmental monitoring, altimeters, and IoT projects. Operates at 3.3V with very low power consumption, communicates via I2C or SPI for quick integration with Arduino, ESP32, STM32, and Raspberry Pi, offering fine resolution and good stability in readings. The GY-BME280 module is a high-precision digital sensor designed for simultaneous measurement of atmospheric pressure, temperature, and relative humidity. This module is ideal for environmental monitoring applications, weather stations, altimeters, and IoT systems. ### BME280 Sensor Module, Pressure, Temperature and Humidity, GY-BME280, 5V - Page: https://sigmanortec.ro/en/bme280-sensor-module-pressure-temperature-and-humidity-gy-bme280-5v - Details: https://sigmanortec.ro/en/llms/p/2398.md - Price: 49.86 RON - Availability: Out of stock - Reference: 88270 · EAN: 5940832698516 - Specifications: Model: GY-BME280; Supply voltage: 5 V; Measured parameters: Presiune, Temperatura, Umiditate; Sensor chip: BME280 Digital sensor module GY-BME280 for measuring pressure, temperature and humidity, using the BME280 chip. The 5V version has an integrated voltage regulator and logic level conversion, connecting directly to Arduino (5V) or to 3.3V platforms such as ESP32, STM32, Raspberry Pi. Supports I2C (up to 3.4 MHz) and SPI (up to 10 MHz) interfaces. Pressure range 300-1100 hPa, temperature -40..+85°C. ### USB Mode on GSM SIM800C – Quad-band, GPRS, Bluetooth - Page: https://sigmanortec.ro/en/usb-mode-on-gsm-sim800c-quad-band-gprs-bluetooth - Details: https://sigmanortec.ro/en/llms/p/2380.md - Price: 67.74 RON - Availability: In stock; 1-2 zile - Reference: 88206 · EAN: 5945795457187 - Specifications: Input Voltage: 5 V; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English.; Microcontroller: SIM800C; Communication interface: GPRS; Frequency bands: Quad-band; Connectivity: Bluetooth SIM800C quad-band GSM module with USB connection via CH340T converter, appears as a virtual serial port on PC. Supports SMS, voice calls and GPRS data (multi-slot, max 85.6 kbps) through AT commands, plus Bluetooth 2.4 GHz IEEE802.15. Powered by 5 V DC via USB, auto-elastic Micro/Nano SIM slot, SMA antenna connector, LED network status indicator. Compatible with Arduino, STM32, ESP32. ### ESP32-S3 Smart IR Controller, Home Assistant, AG8 - Page: https://sigmanortec.ro/en/esp32-s3-smart-ir-controller-home-assistant-ag8 - Details: https://sigmanortec.ro/en/llms/p/2381.md - Price: 726.40 RON - Availability: In stock; 1-2 zile - Reference: 88211 · EAN: 5945504970983 - Specifications: Model: AG8; Microcontroller: ESP32-S3; Number of channels: 8; Connectivity: WiFi, Ethernet; Compatible platform: Home Assistant DIN module for automating equipment with remote control, simultaneously controls up to 8 IR devices through independent channels and quickly learns codes with the built-in IR receiver. It integrates automatically into Home Assistant via MQTT, offers stable connectivity via WiFi or Ethernet, and is powered directly at 9-24 VDC, with USB-C for programming and backup. This smart IR controller is a compact module designed for DIN rail mounting, based on the ESP32-S3-WROOM-1U N16R8 chip and intended for controlling devices via infrared in automation applications. ### Inductive proximity sensor, PNP, NO, LJA18M-10P1, 6-36V - Page: https://sigmanortec.ro/en/inductive-proximity-sensor-pnp-no-lja18m-10p1-6-36v - Details: https://sigmanortec.ro/en/llms/p/2369.md - Price: 55.08 RON - Availability: In stock; 1-2 zile - Reference: 88203 · EAN: 5944915533558 - Specifications: Input Voltage: 6 - 36 VDC; Model: LJA18M-10P1; Contact type: NO; Detection distance: 10 mm; Output type: PNP; Body diameter: M18 LJA18M-10P1 inductive proximity sensor, M18 non-flush housing, for contactless detection of metal objects. Power supply 6-36 VDC, PNP NO output, detection distance 10 mm (for iron), max output current 300 mA, max current consumption 15 mA. Nickel-plated brass housing, IP67, 3-wire 2 m cable, status LED, short-circuit and reverse polarity protection, operating temperature -25~65°C. ### Inductive proximity sensor, PNP, NC, LJA18M-10P2, 6-36V - Page: https://sigmanortec.ro/en/inductive-proximity-sensor-pnp-nc-lja18m-10p2-6-36v - Details: https://sigmanortec.ro/en/llms/p/2370.md - Price: 55.08 RON - Availability: In stock; 1-2 zile - Reference: 88204 · EAN: 5948007082788 - Specifications: Input Voltage: 6 - 36 VDC; Model: LJA18M-10P2; Contact type: NC; Detection distance: 10 mm; Output type: PNP; Body diameter: M18 Inductive proximity sensor for non-contact detection of metal objects in automation and DIY projects. M18 non-flush mounting, detection distance up to 10 mm for iron, PNP NC output compatible with PLCs and controllers, 6–36V DC power supply. Robust housing with IP67 protection, status LED, and integrated 2 m cable for quick installation. Inductive sensor from the LJA series designed for contactless detection of metal objects. The cylindrical body with a diameter of 18mm (M18) allows quick mounting in various industrial applications or DIY projects. ### Inductive proximity sensor, NPN, NO, LJA18M-10N1, 6-36V - Page: https://sigmanortec.ro/en/inductive-proximity-sensor-npn-no-lja18m-10n1-6-36v - Details: https://sigmanortec.ro/en/llms/p/2371.md - Price: 55.08 RON - Availability: In stock; 1-2 zile - Reference: 88207 · EAN: 5944413210678 - Specifications: Input Voltage: 6 - 36 V; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English.; Contact type: NO; Sensor output type: NPN; Detection distance: 10 mm; Body diameter: 18 mm LJA18M-10N1 inductive proximity sensor with NPN NO output, for contactless detection of metal objects. Power supply 6-36 VDC, detection distance 10 mm (iron), non-flush mounting, M18 nickel-plated brass housing, IP67 protection. Current consumption max. 15 mA, output current max. 300 mA, response frequency 0.2 KHz. 3-wire cable, 2 m. Compatible with PLC, Arduino, STM32, ESP32. Operating temperature -25~65 degree C. ### Inductive proximity sensor, NPN, NC, LJA18M-10N2, 6-36V - Page: https://sigmanortec.ro/en/inductive-proximity-sensor-npn-nc-lja18m-10n2-6-36v - Details: https://sigmanortec.ro/en/llms/p/2372.md - Price: 55.08 RON - Availability: In stock; 1-2 zile - Reference: 88208 · EAN: 5949773783480 - Specifications: Input Voltage: 6 - 36 V; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English.; Contact type: NC; Sensor output type: NPN; Detection distance: 10 mm; Body diameter: 18 mm Inductive proximity sensor for non-contact detection of metal objects, ideal for industrial automation and DIY projects. It offers a 10 mm detection distance, NPN normally closed output compatible with PLCs and microcontrollers, 6-36 VDC power supply, and status LED. Robust M18 nickel-plated brass housing and IP67 protection for dusty and humid environments. Inductive sensor from the LJA series designed for contactless detection of metal objects. The cylindrical body with a diameter of 18mm (M18) allows quick installation in various industrial applications or DIY projects. ### UV Sensor Module, GUVA-S12SD Photodiode, 3-5V - Page: https://sigmanortec.ro/en/uv-sensor-module-guva-s12sd-photodiode-3-5v - Details: https://sigmanortec.ro/en/llms/p/2361.md - Price: 11.89 RON - Availability: In stock; 1-2 zile - Reference: 88171 · EAN: 5941813646724 - Specifications: Supply Voltage: 3; Maximum Input Voltage: 5; Integrated sensor: Fotodioda GUVA-S12SD Compact UV sensor module with GUVA-S12SD photodiode, spectral range 220-370 nm, maximum sensitivity at 330 nm. Supply voltage 3.3-5 VDC, current consumption approximately 0.1 mA, linear analog output 0-1V at 5V, measurement range 0-100 mW/cm2, response time under 1 ms. Pins: VCC, GND, SIG. Connects to the analog input of a microcontroller such as Arduino, ESP32 or STM32, suitable for weather stations and UV monitoring. ### 7 in 1 Soil Sensor (N, P, K, pH, EC, Moisture, Temperature), RS485, 5–30V - Page: https://sigmanortec.ro/en/7-in-1-soil-sensor-n-p-k-ph-ec-moisture-temperature-rs485-530v - Details: https://sigmanortec.ro/en/llms/p/2345.md - Price: 447.54 RON - Availability: In stock; 1-2 zile - Reference: 88159 · EAN: 5947374297290 - Specifications: Supply Voltage: 5; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English.; Communication interface: RS485; Measured parameters: N, P, K, pH, EC, Umiditate, Temperatura Quickly monitor essential soil parameters for precise fertilization and irrigation, measuring N, P, K, pH, EC, moisture, and temperature in a single device, RS485 Modbus RTU communication for easy integration into SCADA or IoT projects, 316 stainless steel probes and IP68 sealed housing for long-term use, wide 5–30V power supply with low consumption. The NPKPHCTH-S sensor is a complete soil monitoring solution, integrating the simultaneous measurement of nine parameters in a single device: humidity, temperature, electrical conductivity (EC), pH, nitrogen (N), phosphorus (P), potassium (K), salinity, and TDS (total dissolved solids). ### Serial Data Recording Module, microSD, ATmega328, Blackbox, 3-12V - Page: https://sigmanortec.ro/en/serial-data-recording-module-microsd-atmega328-blackbox-3-12v - Details: https://sigmanortec.ro/en/llms/p/2346.md - Price: 27.94 RON - Availability: In stock; 1-2 zile - Reference: 88161 · EAN: 5948055821216 - Specifications: Supply Voltage: 3; Maximum Input Voltage: 12; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English.; Microcontroller: ATmega328; Communication interface: Serial; Memory card support: microSD OpenLog module with ATmega328 (16 MHz) for recording serial data to a microSD card (up to 64GB, FAT16/FAT32). UART TTL interface, baud rate configurable via CONFIG.TXT (2400-115200 bps). Power supply 3-12 VDC (recommended 3.3-5V), current draw 2-3 mA idle, 6-20 mA while logging. 2 status LEDs for writing. Compatible with Naze32 F3, Cleanflight, Betaflight, iNav for Blackbox logging on drones. ### RTC Module DS1307, I2C Interface, 5V - Page: https://sigmanortec.ro/en/rtc-module-ds1307-i2c-interface-5v - Details: https://sigmanortec.ro/en/llms/p/2350.md - Price: 13.12 RON - Availability: In stock; 1-2 zile - Reference: 88175 · EAN: 5949843371920 - Specifications: Main IC: DS1307; Supply voltage: 5 V; Communication interface: I2C RTC module based on the DS1307 chip, with I2C interface (address 0x68) and 5V power supply. Provides seconds, minutes, hours, day of week, date, month and year, with automatic leap year correction up to 2100. Supports 24h/12h format with AM/PM, includes 56 bytes of non-volatile RAM and backup via a CR1220 battery (not included). 32.768 kHz crystal, accuracy ~1s/day, operating temperature -40~85°C, dimensions 41x23 mm. ### Line sensor module, QRE1113, IR, 5V - Page: https://sigmanortec.ro/en/line-sensor-module-qre1113-ir-5v - Details: https://sigmanortec.ro/en/llms/p/2337.md - Price: 9.52 RON - Availability: In stock; 1-2 zile - Reference: 11001 · EAN: 5943132013997 - Specifications: Supply voltage: 5 V; Sensor chip: QRE1113; Connection type: IR Line sensor module QRE1113 with IR LED and phototransistor, operating at 5V with digital DO output. Current consumption approximately 25mA, recommended detection distance up to 3 mm. 3-pin connector (VCC, OUT, GND) with 2.54 mm pitch, board dimensions 8 x 14 mm, includes mounting hole. Suitable for line following and contrast detection in robotics. ### Hall Current Sensor Module, WCS1800, AC-DC, 35A, 5V - Page: https://sigmanortec.ro/en/hall-current-sensor-module-wcs1800-ac-dc-35a-5v - Details: https://sigmanortec.ro/en/llms/p/2338.md - Price: 56.16 RON - Availability: In stock; 1-2 zile - Reference: 88250 · EAN: 5941299511332 - Specifications: tension: NEEDLE; Supply voltage: 5 V; Sensor chip: WCS1800; Maximum measured current: 35 A WCS1800 Hall current sensor module, for 5V systems, 5V DC supply voltage. Measures without breaking the circuit, the conductor passes through the module's hole. Analog output AOUT proportional to current, for bidirectional DC up to +/-35A and AC up to 25A, linearity 60mV/A. Digital output DOUT TTL with threshold adjustable via potentiometer (0.5A-35A) and overcurrent LED indicator. Board size 37x31mm. ### RGB LED module, SMD, 5050, 3-5V - Page: https://sigmanortec.ro/en/rgb-led-module-smd-5050-3-5v - Details: https://sigmanortec.ro/en/llms/p/2339.md - Price: 5.47 RON - Availability: In stock; 1-2 zile - Reference: 88255 · EAN: 5944891837121 - Specifications: Supply voltage: 3 - 5 V; Package type: SMD 5050 RGB LED module with SMD 5050, 3-5V supply voltage, featuring integrated resistors for current limiting on each R, G, B channel. Control is via PWM on the three channels, with DIP-type pins for mounting on breadboards or prototypes. Consumption under 20mA per channel, dimensions 12 x 15mm. Suitable for signaling, color effects and Arduino projects or simple automation. ### Air quality sensor module, VOC, MICS-4514, 5V - Page: https://sigmanortec.ro/en/air-quality-sensor-module-voc-mics-4514-5v - Details: https://sigmanortec.ro/en/llms/p/2342.md - Price: 199.17 RON - Availability: Out of stock - Reference: 88153 · EAN: 5945255201725 - Specifications: Input Voltage: 5 V; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English.; Measured quantity: VOC; Sensor used: MICS-4514 Air quality sensor module with MICS-4514 sensor, 5 V DC supply, Arduino compatible. Detects reducing gases (CO, NH3, ethanol, H2, methane/propane/isobutane) on the RO output and oxidizing gases (NO2) on the OX output, providing two separate analog outputs. Includes an En pin for heater activation. Current draw ~25-35mA, operating temperature -20~50°C, dimensions 17x14 mm. ### TDS sensor module, water quality, analog probe, 3.3-5V - Page: https://sigmanortec.ro/en/tds-sensor-module-water-quality-analog-probe-33-5v - Details: https://sigmanortec.ro/en/llms/p/2325.md - Price: 28.47 RON - Availability: In stock; 1-2 zile - Reference: 88155 · EAN: 5942950913656 - Specifications: Input Voltage: 3.3 - 5 VDC; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English.; Output signal type: Analogic TDS sensor module for measuring water conductivity and estimating TDS, with a stainless steel probe (length ~60 mm, diameter 12 mm, cable ~60 cm). Power supply 3.3-5.5 VDC, current 3-6 mA, analog output 0-2.3V, measuring range 0-1000 ppm, accuracy ±10% F.S. (25°C), operating temperature 5~55°C. Module dimensions 41.7 x 32.2 mm. Suitable for aquariums, hydroponics and educational projects with Arduino. ### Water Leak Detection Probe, WLS02, Stainless Steel Electrode, 12-24V, NO, 1m Cable - Page: https://sigmanortec.ro/en/water-leak-detection-probe-wls02-stainless-steel-electrode-12-24v-no-1m-cable - Details: https://sigmanortec.ro/en/llms/p/2326.md - Price: 59.67 RON - Availability: In stock; 1-2 zile - Reference: 88158 · EAN: 5944792544753 - Specifications: Output Type Voltage: Closed-Open Contact; Input Voltage: 12 - 24 VDC; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English.; Material: Inox; Cable length: 1 m Passive water leak detection probe WLS02 with corrosion-resistant stainless steel electrode, suitable for use in salt water as well. Operates based on the conductivity of water between two electrodes, signaling the presence of liquid to an external module (relay, PLC, Arduino). Input voltage 12-24 VDC, NO type output via external module, 1 m cable. Suitable for mounting in technical rooms, basements or under equipment. ### I2C Expansion Module, 10 channels, 3.3-5V - Page: https://sigmanortec.ro/en/i2c-expansion-module-10-channels-33-5v - Details: https://sigmanortec.ro/en/llms/p/2329.md - Price: 7.19 RON - Availability: Out of stock - Reference: 88167 · EAN: 5941733911896 - Specifications: Input Voltage: 3.3 - 5 V; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English.; Communication interface: I2C; Number of channels: 10 Compact I2C hub that distributes the SDA and SCL lines in parallel to 10 ports with 2.54 mm pins. Operates at 3.3-5V DC and allows simultaneous connection of multiple I2C sensors or modules to a single microcontroller (Arduino, ESP32, ESP8266, Raspberry Pi Pico). Does not select channels or change I2C addresses, it only distributes the signal. Dimensions 38 x 20 mm. Ref. 88167. ### TCS3472 Color Sensor Module, RGB, 3-5V - Page: https://sigmanortec.ro/en/tcs3472-color-sensor-module-rgb-3-5v - Details: https://sigmanortec.ro/en/llms/p/2333.md - Price: 22.68 RON - Availability: In stock; 1-2 zile - Reference: 88173 · EAN: 5947460911796 - Specifications: Supply voltage: 3 - 5 V; Main chip: TCS3472; Output signal type: I2C TCS3472 color sensor module (ams OSRAM), RGB, 3-5V supply, I2C output (address 0x29). Uses a 4-channel photodiode array (R, G, B, Clear) with 16-bit ADC, integrated IR filter. Current draw ~235 uA active, 2.5 uA sleep. Dimensions 31 x 11 mm, weight 2.3 g. Pins: VIN, GND, 3V3, SCL, SDA, INT, LED. Suitable for color detection, sorting, LED calibration or surface analysis. ### UV Sensor Module, ALS-PT19, Analog, 2.5-5V - Page: https://sigmanortec.ro/en/uv-sensor-module-als-pt19-analog-25-5v - Details: https://sigmanortec.ro/en/llms/p/2334.md - Price: 14.30 RON - Availability: In stock; 1-2 zile - Reference: 88174 · EAN: 5945210623463 - Specifications: Supply voltage: 2.5 - 5 V; Main chip: ALS-PT19; Output signal type: Analogic UV sensor module based on the ALS-PT19 chip, with analog output proportional to UV intensity (approximately 0.1V per UV index unit). Detects radiation in the 240-370nm spectrum (UVB and most of UVA). Operates at 2.5-5.5V DC, current consumption below 1mA. Dimensions 10.1 x 7.8mm, weight 1g. Pins: VIN, GND, OUT, compatible with microcontrollers featuring an ADC (Arduino, ESP32, STM32, Raspberry Pi Pico). ### G10A-F30 GNSS module, with UBX-M10050-KB, L1 multi-constellation, UART TTL, 25Hz, 1PPS, SBAS - Page: https://sigmanortec.ro/en/g10a-f30-gnss-module-with-ubx-m10050-kb-l1-multi-constellation-uart-ttl-25hz-1pps-sbas - Details: https://sigmanortec.ro/en/llms/p/2315.md - Price: 149.68 RON - Availability: In stock; 1-2 zile - Reference: 88189 · EAN: 5948003766477 Multi-constellation L1 GNSS solution for fast integration on TTL UART, provides stable positioning in mobile and industrial applications. Supports GPS, GLONASS, Galileo, BeiDou, QZSS and SBAS for faster fix in difficult areas, allows up to 25 Hz update for dynamic tracking, includes 1PPS output for precise synchronization and saves settings in Flash. The G10A-F30 GNSS module with UBX-M10050-KB chip is an efficient solution for multi-constellation reception on the L1 band, suitable for projects where stable positioning and fast integration on UART are needed. ### STM32F103 development board, 4G Air780E module, 5V double relay, for IoT - Page: https://sigmanortec.ro/en/stm32f103-development-board-4g-air780e-module-5v-double-relay-for-iot - Details: https://sigmanortec.ro/en/llms/p/2316.md - Price: 156.80 RON - Availability: In stock; 1-2 zile - Reference: 88197 · EAN: 5942890340864 Development board with STM32F103C6T6 (32-bit ARM) and 4G Air780E LTE Cat.1 bis module, for IoT projects. Includes two 5V relays controlled via PA4/PA5, flip-up Nano SIM slot, 4G antenna, network status LED and relay status LEDs. Powered at 5V via USB Type-C or KF128 terminal, programmable via SWD or USART. Standby consumption 600µA. Dimensions 62 x 72,5 mm. ### Ambient light sensor, VEML7700, I2C, 0-120 klx, 3-5V - Page: https://sigmanortec.ro/en/ambient-light-sensor-veml7700-i2c-0-120-klx-3-5v - Details: https://sigmanortec.ro/en/llms/p/2317.md - Price: 25.83 RON - Availability: Out of stock - Reference: 88140 · EAN: 5948886129901 - Specifications: Input Voltage: 3 - 5 V; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English. Digital module for real-time measurement of ambient light, ideal for lighting automation, weather stations, greenhouses and IoT projects. Offers direct readings in lux via I2C, 16-bit conversion with fine resolution, wide range 0-120 klx extendable up to 167 klx and operates at 3.3-5V with low consumption. The VEML7700 digital ambient light sensor is a compact and precise module compatible with Arduino, STM32, ESP32, and other development boards with an I2C interface. It was designed for real-time light intensity measurement, providing values directly in lux through simple and reliable I2C communication. ### Audio module with SC8002B amplifier, built-in speaker, and volume control, 5V, 2W - Page: https://sigmanortec.ro/en/audio-module-with-sc8002b-amplifier-built-in-speaker-and-volume-control-5v-2w - Details: https://sigmanortec.ro/en/llms/p/2318.md - Price: 40.23 RON - Availability: In stock; 1-2 zile - Reference: 88141 · EAN: 5944359312979 - Specifications: Type: Amplifier; Power: 0 - 20W; Input Voltage: 5 V; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English. Compact audio module with SC8002B amplifier, built-in speaker, and potentiometer for volume control. Operating voltage 5 VDC, current >500 mA, maximum output power 2W, amplification factor ~8.5x. 3-pin interface (GND, VCC, S), speaker volume 80 dB, dimensions 49 x 30 x 16 mm. Suitable for tones, alerts, and simple melodies in Arduino projects or other control systems. ### Tilt sensor module, SW-520D, 3.3-5V - Page: https://sigmanortec.ro/en/tilt-sensor-module-sw-520d-33-5v - Details: https://sigmanortec.ro/en/llms/p/2320.md - Price: 4.51 RON - Availability: In stock; 1-2 zile - Reference: 88145 · EAN: 5947349043532 - Specifications: Input Voltage: 3.3 - 5 V; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English. SW-520D tilt sensor module with sealed metal ball, for detecting tilt and vibration. Digital output (D0), trigger angle approximately 15°, ON-state resistance 10 MOhm, maximum output current >15 mA. Operating voltage 3.3-5 VDC, operating temperature 0-+80°C, dimension 32 x 14 mm. Includes status LED. Works with Arduino, ESP32 or STM32. Pins: D0, GND, VCC. ### CO2 sensor module, temperature and humidity, SCD41, I2C, 2.4-5V - Page: https://sigmanortec.ro/en/co2-sensor-module-temperature-and-humidity-scd41-i2c-24-5v - Details: https://sigmanortec.ro/en/llms/p/2324.md - Price: 201.13 RON - Availability: Out of stock - Reference: 88154 · EAN: 5946366996227 - Specifications: Supply Voltage: 2.4; Maximum Input Voltage: 5; Interface / Control: I2C Compact air quality monitoring module, measures CO2, temperature and humidity, ideal for IoT, HVAC and automation. Communicates quickly via I2C at address 0x62, operates at 2.4-5.5 V for compatibility with 3.3V and 5V, offers CO2 measurement up to 40000 ppm and low consumption for continuous or low-power use. This module integrates the Sensirion SCD41 sensor, with true carbon dioxide measurement using the photoacoustic NDIR principle, along with ambient temperature and humidity. It is intended for air quality monitoring applications, automation, HVAC systems, weather stations, and IoT projects. ### 3.5 inch touchscreen, Raspberry Pi, 480 x 320, SPI, with ABS case - Page: https://sigmanortec.ro/en/35-inch-touchscreen-raspberry-pi-480-x-320-spi-with-abs-case - Details: https://sigmanortec.ro/en/llms/p/2308.md - Price: 158.86 RON - Availability: In stock; 1-2 zile - Reference: 88200 · EAN: 5948777262243 3.5 inch TFT touchscreen for Raspberry Pi, 480 x 320 resolution, 65536 colours, resistive touch (XPT2046 controller) and ILI9486 display driver. Connects directly to GPIO via SPI, no HDMI required. Includes 4 x 74HC4094D circuits and a black ABS case. Compatible with Raspberry Pi A, B, A+, B+, 2B, 3B, 3B+, 4B, supports Raspbian, Ubuntu, Kali Linux. ### Switch Module, Power Switch, ON-OFF, 3.3-20V, 11A - Page: https://sigmanortec.ro/en/switch-module-power-switch-on-off-33-20v-11a - Details: https://sigmanortec.ro/en/llms/p/2309.md - Price: 17.48 RON - Availability: In stock; 1-2 zile - Reference: 88192 · EAN: 5946021706482 - Specifications: Supply Voltage: 3.3 V; Maximum Input Voltage: 20 V; Maximum Output Current: 11 A; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English. Switch module Power Switch ON-OFF, operated by a single press, works at 3.3-20V and switches up to 11A. Standby consumption of 0.01mA, compact dimensions of 15x18mm, replaces classic mechanical switches. Pinout: IN+, GND, OUT+. Supports connection between source and load and allows an external button via a free pad above GND. ### GPS and Compass module, MATEKSYS M10Q-5883, Drone FPV, 5V - Page: https://sigmanortec.ro/en/gps-and-compass-module-mateksys-m10q-5883-drone-fpv-5v - Details: https://sigmanortec.ro/en/llms/p/2311.md - Price: 452.93 RON - Availability: In stock; 1-2 zile - Reference: 88115 · EAN: 5949259643260 - Specifications: Input Voltage: 5 V; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English. Compact module for FPV drones and DIY projects, offers fast and stable positioning with simultaneous GPS, GLONASS, Galileo and BeiDou reception, up to 5Hz update via UBX for better response in flight, integrated QMC5883L compass on I2C for precise orientation, PPS LED easily indicates 3D fix status, includes 15x15 mm patch antenna for easy mounting. The M10Q-5883 module from MATEKSYS is a compact solution for FPV racing drones, autonomous flight and DIY projects, combining a u-blox SAM-M10Q-00B multi-constellation GNSS receiver with a QMC5883L integrated compass. ### GNSS RTK module, dual band, Quectel LC29HDA, with YEGB000Q1A antenna - Page: https://sigmanortec.ro/en/gnss-rtk-module-dual-band-quectel-lc29hda-with-yegb000q1a-antenna - Details: https://sigmanortec.ro/en/llms/p/2314.md - Price: 434.98 RON - Availability: Out of stock - Reference: 88201 · EAN: 5949665538693 Professional GNSS RTK solution for stable centimeter-level positioning, ideal for automation, drones, measurements and monitoring in urban environments. Dual band L1 L5 reception with multi-constellation tracking GPS GLONASS Galileo BDS QZSS, high sensitivity with integrated SAW and LNA for interference resistance, UART I2C SPI interfaces and NMEA RTCM support. Includes YEGB000Q1A antenna. The GNSS module with Quectel LC29HDA represents a professional high-precision positioning solution, designed for applications where accuracy and location stability are essential. ### Air quality sensor module, VOC, MICS-5524, 5V - Page: https://sigmanortec.ro/en/air-quality-sensor-module-voc-mics-5524-5v - Details: https://sigmanortec.ro/en/llms/p/2297.md - Price: 55.60 RON - Availability: In stock; 1-2 zile - Reference: 88120 · EAN: 5944228247814 - Specifications: Input Voltage: 5 V; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English. Air quality sensor module with MICS-5524, 5V DC power supply, compatible with Arduino and other development boards. Detects CO, NO2, H2, NH3, CH4, C3H8, C4H10, with analog output on a single pin. Features an Enable pin (iEn) for heater control and low power consumption. Operating temperature: -20°C to +50°C. Dimensions: 19.2 x 13mm. Current consumption: ~25-35mA. ### RF Power Divider, 1 to 2, SMA Female, 0.5-6GHz - Page: https://sigmanortec.ro/en/rf-power-divider-1-to-2-sma-female-05-6ghz - Details: https://sigmanortec.ro/en/llms/p/2298.md - Price: 347.90 RON - Availability: In stock; 1-2 zile - Reference: 88122 · EAN: 5949380187626 Quickly splits an RF signal to two devices, ideal for 2.4G WiFi, testing and telecommunications. Covers 0.5-6GHz, offers low loss and stable distribution thanks to microstrip technology, has good isolation between outputs and SMA female connectors for easy integration. The metal housing ensures effective shielding and heat dissipation. RF Power Splitter, 1 to 2, with female SMA connectors, for dividing an RF signal to two devices, maintaining stable signal distribution in applications such as 2.4G WiFi, RF systems, testing and telecommunications. It operates in a wide frequency range of 0.5 to 6 GHz and uses microstrip technology for low losses and repeatable behavior. ### 1.3-inch OLED display module, SH1106, EC11 rotary encoder, I2C - Page: https://sigmanortec.ro/en/module-with-096-inch-oled-screen-and-ec11-rotary-encoder - Details: https://sigmanortec.ro/en/llms/p/2299.md - Price: 39.98 RON - Availability: In stock; 1-2 zile - Reference: 88126 · EAN: 5947357466026 Module with 0.96 inch OLED display (SSD1306 driver) and EC11 rotary encoder, using an I2C communication interface. Operating voltage 3.3-5V, dimensions 56 x 97mm. Includes dedicated CONFIRM and RETURN buttons for control and visual feedback. Suitable for HMI interfaces, control panels and DIY projects, compatible with Arduino and similar boards. Reference 88126. ### Digital Microphone Module, Original INMP441, I2S, Omnidirectional, 24-bit, 3.3V - Page: https://sigmanortec.ro/en/digital-microphone-module-original-inmp441-i2s-omnidirectional-24-bit-33v - Details: https://sigmanortec.ro/en/llms/p/2301.md - Price: 44.46 RON - Availability: In stock; 1-2 zile - Reference: 88225 · EAN: 5941231086966 - Specifications: Input Voltage: 3.3 V Digital MEMS microphone module INMP441 (original), omnidirectional, with 24-bit I2S output, intended for audio projects with ESP32 and other microcontrollers without a separate audio codec. Supply voltage 1.8V-3.3V, current consumption 1.4 mA, signal-to-noise ratio 61 dBA, sensitivity -26 dBFS, frequency response 60 Hz-15 kHz. Pins: VDD, GND, SCK, WS, SD, L/R for left/right channel selection. ### Digital Microphone Module, INMP441 Compatible, I2S, Omnidirectional, 24-bit, 3.3V - Page: https://sigmanortec.ro/en/digital-microphone-module-inmp441-compatible-i2s-omnidirectional-24-bit-33v - Details: https://sigmanortec.ro/en/llms/p/2302.md - Price: 11.30 RON - Availability: Out of stock - Reference: 88226 · EAN: 5943318741232 - Specifications: Input Voltage: 3.3 V Omnidirectional MEMS module with I2S output, ideal for audio projects with ESP32 and other microcontrollers, without a separate codec. Delivers 24-bit data for clear capture of voice and ambient sounds, has good signal-to-noise ratio and low power consumption. Operates at 1.8-3.3V , and left/right channel selection is made simply by the L/R pin. The INMP441 Digital Microphone Module is an omnidirectional MEMS module with I2S output, designed for audio projects with ESP32 and other microcontrollers, without the need for a separate audio codec. ### Environmental sensor module, ENS160+AHT21, temperature, humidity, VOC, 5V - Page: https://sigmanortec.ro/en/environmental-sensor-module-ens160aht21-temperature-humidity-voc-5v - Details: https://sigmanortec.ro/en/llms/p/2290.md - Price: 53.51 RON - Availability: In stock; 1-2 zile - Reference: 88121 · EAN: 5948292393538 - Specifications: Input Voltage: 5 V; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English. Compact solution for monitoring indoor air quality, measuring temperature and humidity and detecting VOC for smart home and HVAC automation. It connects quickly to Arduino and other platforms via I2C or SPI, operates at 5V with low consumption of approximately 10mA, offers a wide measurement range and is easy to mount due to its small size. The ENS160 + AHT21 module is a compact solution for complete indoor air monitoring, combining temperature and humidity measurement with gas and volatile organic compound detection. ### Tester Module Set with Display and VL53L0X, 3.3-5V - Page: https://sigmanortec.ro/en/tester-module-set-with-display-and-vl53l0x-33-5v - Details: https://sigmanortec.ro/en/llms/p/2272.md - Price: 36.06 RON - Availability: In stock; 1-2 zile - Reference: 88132 · EAN: 5944248336642 - Specifications: Input Voltage: 3.3 - 5 V; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English.; Model: VL53L0X Set consisting of a VL53L0X laser sensor and an intermediate board with digital display, for distance measurement using the ToF method. Power supply 3.3-5VDC, recommended maximum range 50cm, update every 1 second. The VL53L0X communicates with the intermediate board via I2C, which processes the data with an MS51FB9AE chip and outputs it serially. Board dimensions: 35 x 25 x 23mm. Package: 1 x VL53L0X sensor, 1 x intermediate board. ### LED Bar Module, Common Cathode, 8 LEDs, 3-5V - Page: https://sigmanortec.ro/en/led-bar-module-common-cathode-8-leds-3-5v - Details: https://sigmanortec.ro/en/llms/p/2274.md - Price: 12.35 RON - Availability: In stock; 1-2 zile - Reference: 88131 · EAN: 5943723517750 - Specifications: Supply Voltage: 3; Maximum Input Voltage: 5; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English. LED bar module with 8 LEDs, common cathode, power supply 3-5.5VDC, with integrated current-limiting resistors. Active level LOW, maximum current ### FrSky Antenna, Dipole T, 868MHz, EU LBT, Ipex4 - Page: https://sigmanortec.ro/en/frsky-antenna-dipole-t-868mhz-eu-lbt-ipex4 - Details: https://sigmanortec.ro/en/llms/p/2277.md - Price: 64.20 RON - Availability: In stock; 1-2 zile - Reference: 88100 · EAN: 5949129572515 FrSky Dipole T antenna, 868MHz, EU LBT version, with Ipex4 connector, intended as an upgrade for FrSky R9 Mini and R9 MM receivers. Improves reception and link stability for long range flights. Compact design, weight 2.78g, easy to integrate on small drones. ### Audio Module VS1053B, MP3, 5V - Page: https://sigmanortec.ro/en/audio-module-vs1053b-mp3-5v - Details: https://sigmanortec.ro/en/llms/p/2259.md - Price: 82.24 RON - Availability: In stock; 1-2 zile - Reference: 88096 · EAN: 5945583389119 - Specifications: Input Voltage: 5 V; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English. VS1053B audio module for Arduino and other development boards, 5V DC power supply. Decodes MP3, OGG, AAC, WMA and MIDI, with stereo and headphone output. Supports OGG recording via built-in microphone or line-in, SD card slot for direct playback, SPI communication. Integrated LDO regulators AMS1117 3.3V/2.8V, 12.288 MHz crystal. Dimensions: 46 x 40 mm. ### RG58 coaxial cable, 2 meters, SMA Tata connectors - Page: https://sigmanortec.ro/en/rg58-coaxial-cable-2-meters-sma-tata-connectors - Details: https://sigmanortec.ro/en/llms/p/2265.md - Price: 59.10 RON - Availability: In stock; 1-2 zile - Reference: 88127 · EAN: 5949381869941 RG58 coaxial cable, 2 meters long, with SMA male (Tata) connectors on both ends. The 50 ohm impedance ensures stable signal transmission with low losses. It is intended for extending and connecting WiFi antennas, RF modules and communication equipment with an SMA interface, providing a secure fit and wide compatibility. ### Siren module, 120dB, 6-15VDC - Page: https://sigmanortec.ro/en/siren-module-120db-6-15vdc - Details: https://sigmanortec.ro/en/llms/p/2266.md - Price: 18.66 RON - Availability: In stock; 1-2 zile - Reference: 88130 · EAN: 5942211142344 - Specifications: tension: AD Compact siren module for alarm and anti-intrusion systems, model QSI-4840. Power supply 6-15VDC, sound level up to 120dB (sound index 110dB at 12VDC), frequency 2.8 ± 0.5kHz, current consumption 750 mA at 12VDC. Dimensions 39 x 47 x 23 mm, suitable for integration into audible warning systems. ### UV Sensor Module, UVM-30A, Analog 0-1V, 3-5V - Page: https://sigmanortec.ro/en/uv-sensor-module-uvm-30a-analog-0-1v-3-5v - Details: https://sigmanortec.ro/en/llms/p/2271.md - Price: 70.99 RON - Availability: In stock; 1-2 zile - Reference: 88098 · EAN: 5941212310257 - Specifications: Input Voltage: 3 - 5 V; Output Voltage: 0 - 1 V; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English.; Output Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English.; Model: UVM-30A UVM-30A UV sensor module with proportional analog output 0-1V, powered at 3-5V DC. Detects UV radiation in the 200-370 nm range, accuracy ±1 UV index, operating current 0.06 mA (max 0.1 mA), operating temperature -20~+85°C, dimensions 28x13x10 mm. Suitable for integration with microcontrollers and development boards, environmental monitoring and educational projects. ### UVA and UVB sensor module, GY-8511, Analog, 3.3V - Page: https://sigmanortec.ro/en/uva-and-uvb-sensor-module-gy-8511-analog-33v - Details: https://sigmanortec.ro/en/llms/p/2252.md - Price: 129.24 RON - Availability: In stock; 1-2 zile - Reference: 88089 · EAN: 5948768823491 - Specifications: Input Voltage: 3.3 V; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English. The ML8511 sensor module accurately measures UVA and UVB radiation intensity for educational projects, laboratory or solar monitoring, operates at 3.3V and provides easy-to-read linear analog output with Arduino, ESP32 or Raspberry Pi, covers 280–390 nm and SOI CMOS integration ensures stable signal with low noise in a compact form factor. The GY-8511 module with ML8511 sensor, compatible with Arduino and other development boards, is designed for precise measurement of ultraviolet rays intensity in the UVA and UVB spectrum, making it ideal for educational projects, laboratory experiments, and applications for monitoring exposure to solar radiation. ### IRF540N module, 4 channels, 5V - Page: https://sigmanortec.ro/en/irf540n-module-4-channels-5v - Details: https://sigmanortec.ro/en/llms/p/2253.md - Price: 23.80 RON - Availability: In stock; 1-2 zile - Reference: 88090 · EAN: 5943387389915 - Specifications: Input Voltage: 5 V; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English. 4-channel IRF540N MOSFET module for switching DC loads (LED strips, motors, electronic modules), compatible with Arduino and other boards. Supply 5VDC, logic signal 3.3-5V, activated on HIGH. Optical isolation PS2801-4 with common GND, status LED per channel. Supports up to 100V and 10A per channel. Dimensions 66 x 66mm. Not suitable for AC circuits. ### Wireless Remote Control Kit, Freenove with tutorial, NRF24L01 - Page: https://sigmanortec.ro/en/wireless-remote-control-kit-freenove-with-tutorial-nrf24l01 - Details: https://sigmanortec.ro/en/llms/p/2238.md - Price: 268.24 RON - Availability: In stock; 1-2 zile - Reference: 88076 · EAN: 5948845321513 DIY kit for building a functional wireless remote control, based on the Freenove UNO R3 board (compatible with Arduino UNO R3, ATmega328P, 16 MHz, 5V, USB-C) and two NRF24L01 modules (2.4GHz, SPI, 3.3V) for transmitter and receiver. Includes assembly accessories, a 9V battery holder (battery not included) and a step-by-step tutorial on GitHub in English. Requires technical knowledge. ### Voltage and Current Sensor Module, INA260, 36V, 15A - Page: https://sigmanortec.ro/en/voltage-and-current-sensor-module-ina260-36v-15a - Details: https://sigmanortec.ro/en/llms/p/2240.md - Price: 122.26 RON - Availability: Out of stock - Reference: 88077 · EAN: 5948197739714 - Specifications: Nominal Current: 15 A; Maximum Input Voltage: 36 INA260 sensor module for measuring voltage, current and power, compatible with Arduino and other development boards. It measures up to 36V and 15A, with a resolution of 1.5mA and an accuracy of about ±1%. Communicates via I2C interface, operating voltage 3.3-5V, operating temperature -40~125°C. Dimensions 23x23x2mm, weight 2g. I2C address configurable via the A0/A1 pins. ### GSM relay module, gate opener, G203, 9–24V, 2G - Page: https://sigmanortec.ro/en/gsm-relay-module-gate-opener-g202-plus-9-24v-2g - Details: https://sigmanortec.ro/en/llms/p/2231.md - Price: 238.75 RON - Availability: In stock; 1-2 zile - Reference: 9535 · EAN: 5946024080961 - Specifications: Supply Voltage: 9; Maximum Input Voltage: 24; Output Type Voltage: Closed-Open Contact; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English. GSM relay module for gate opening and access control, fast activation by rejected call or SMS, works on 2G network and is powered at 9-24V. It allows storing up to 1001 authorized numbers and defining administrators and users, includes an external antenna and Nano SIM slot, COM NC NO relay output with configurable pulse time. GSM remote-control relay module that can be used to open gates, doors, or to remotely control any kind of device or equipment. The module is the 2G version, which supports only 2G networks and does not support 4G. A 4G model is also available in the catalog. The relay is activated either by directly calling the SIM card installed in the module or by SMS message. ### NH3 and CO Gas Sensor, MQ-137, Ammonia, Analog and Digital, 5V - Page: https://sigmanortec.ro/en/nh3-and-co-gas-sensor-mq-137-ammonia-analog-and-digital-5v - Details: https://sigmanortec.ro/en/llms/p/2232.md - Price: 174.88 RON - Availability: In stock; 1-2 zile - Reference: 88165 · EAN: 5944832002267 - Specifications: Supply Voltage: 5; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English. MQ-137 gas sensor module for detecting ammonia (NH3) and carbon monoxide (CO), with analog output 0-5V and digital TTL output via LM393 comparator. Adjustable sensitivity threshold via potentiometer, response time under 1s, measurement range 10-300ppm. Power supply 5V DC, dimensions 28 x 20mm, compatible with Arduino, ESP32 and Raspberry Pi. LED indicator for power and signal. ### PT100 temperature probe needle type, SUS304 stainless steel, FEP shielded cable, -50~200°C, class F0.15 - Page: https://sigmanortec.ro/en/pt100-temperature-probe-needle-type-sus304-stainless-steel-fep-shielded-cable-50200c-class-f015 - Details: https://sigmanortec.ro/en/llms/p/2217.md - Price: 59.42 RON - Availability: In stock; 1-2 zile - Reference: 88056 · EAN: 5943896231507 - Specifications: Material: Inox SUS304 PT100 needle type temperature probe with SUS304 stainless steel shaft and FEP shielded cable, for measurements in liquids, solids and food. Operating range -50~200°C, tolerance class F0.15. Sealed 1/4 NPT threaded mount, detachable spring-lock connector, 1 m cable, probe diameter 4 mm x length 100 mm. 2-wire or 3-wire connection. ### ESP32-S3-SIM7670G-4G development board, 4G Cat-1 connectivity, WiFi, Bluetooth, GPS, OV camera, solar charging - Page: https://sigmanortec.ro/en/esp32-s3-sim7670g-4g-development-board-4g-cat-1-connectivity-wifi-bluetooth-gps-ov-camera-solar-charging - Details: https://sigmanortec.ro/en/llms/p/2222.md - Price: 469.49 RON - Availability: In stock; 1-2 zile - Reference: 88062 · EAN: 5944675199148 The all-in-one IoT platform for autonomous and mobile projects combines 4G Cat-1 with WiFi and Bluetooth for fast cloud connectivity, includes multi-system GNSS for precise tracking, supports OV camera for capture and streaming, has flexible power supply via USB, 18650 battery or solar panel with integrated charging. The Waveshare ESP32-S3-SIM7670G-4G development board is a complete multifunctional development module, designed for IoT projects and smart applications that require 4G, WiFi, Bluetooth and GNSS connectivity in a single platform. ### Active Buzzer Module with LED, for PixHawk PX4, alarm, 3.3V - Page: https://sigmanortec.ro/en/active-buzzer-module-with-led-for-pixhawk-px4-alarm-33v - Details: https://sigmanortec.ro/en/llms/p/2211.md - Price: 29.43 RON - Availability: In stock; 1-2 zile - Reference: 88050 · EAN: 5946683990533 - Specifications: Input Voltage: 3.3 V Active buzzer module with red LED for PixHawk PX4, used as an alarm for low battery, failsafe or signal loss. Powered at 3.3V, includes a button for manual shutdown, connects via the Buzzer and Switch interfaces. Dimensions 15 x 38mm, weight 7g. Helps locate the drone after an uncontrolled landing. Reference 88050. ### CO2 sensor MH-Z19C, UART and PWM output, NDIR, 400-5000ppm - Page: https://sigmanortec.ro/en/co2-sensor-mh-z19c-uart-and-pwm-output-ndir-400-5000ppm - Details: https://sigmanortec.ro/en/llms/p/2212.md - Price: 288.17 RON - Availability: In stock; 1-2 zile - Reference: 88051 · EAN: 5943607239709 CO2 sensor MH-Z19C using NDIR principle with temperature compensation, measurement range 400-5000ppm. UART TTL 3.3 V and PWM outputs, 5.0 V DC supply, average current under 40 mA, peak current up to 125 mA. Warm-up time ~1 minute, response time T90 under 120 s. Operating temperature -10 to +50 C, humidity 0-95% RH non-condensing. Dimensions 33 x 20mm. Works with Arduino, ESP, STM32. ### SGP41 air quality sensor module, VOC and NOx, I2C, 3.3V - Page: https://sigmanortec.ro/en/sgp41-air-quality-sensor-module-voc-and-nox-i2c-16v - Details: https://sigmanortec.ro/en/llms/p/2213.md - Price: 67.11 RON - Availability: In stock; 1-2 zile - Reference: 88052 · EAN: 5940328302897 - Specifications: Input Voltage: 1.6 V; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English. Compact module for real-time air quality monitoring, detects VOC and NOx with Sensirion MOX technology, I2C communication for quick integration with Arduino, ESP32, Raspberry Pi or STM32, operates at low 3.3V voltage ideal for battery-powered devices, suitable for smart home, HVAC, purifiers and portable weather stations. Module based on the SGP41 sensor, designed for measuring air quality, compatible with Arduino and other development boards, used in smart home applications, HVAC, air purifiers or portable weather stations. ### LoRa M5 Stack module with E220 transceiver, 433MHz, 5V - Page: https://sigmanortec.ro/en/lora-m5-stack-module-with-e220-transceiver-433mhz-5v - Details: https://sigmanortec.ro/en/llms/p/2196.md - Price: 213.32 RON - Availability: In stock; 1-2 zile - Reference: 88042 · EAN: 5942876384004 - Specifications: Input Voltage: 5 VDC; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English. High-performance LoRa solution for long-distance wireless communications, ideal for IoT, remote sensors and monitoring. It operates at 433 MHz with coverage up to 10 km in open field, UART interface with AT commands for quick integration with Arduino and similar boards, adjustable 22 dBm emission power and ultra-low sleep consumption of up to 2 uA. The M5Stack module with LoRa E220 transceiver is a high-performance wireless communication solution, designed for projects that require long-distance transmissions. Operating at a frequency of 433 MHz, the module can provide communications up to 10 km in open field, making it ideal for IoT applications, remote sensors or monitoring systems. ### MicroSD Sniffer Adapter, SPI Test - Page: https://sigmanortec.ro/en/microsd-sniffer-adapter-spi-test - Details: https://sigmanortec.ro/en/llms/p/2197.md - Price: 8.88 RON - Availability: In stock; 1-2 zile - Reference: 88043 · EAN: 5943064011108 MicroSD Sniffer Adapter (ref. 88043) for testing and debugging SPI communication between a microSD card and a microcontroller. Features a standard microSD socket, a connector that plugs directly into the port, and 2.54mm breakout pins for DAT1, DAT0, CLK, VCC, GND, CMD, CD, DAT2. Allows real-time monitoring with a logic analyzer or oscilloscope. Dimensions: 47 x 28mm. ### LCD display for EGS002B, 1602 - Page: https://sigmanortec.ro/en/lcd-display-for-egs002b-1602 - Details: https://sigmanortec.ro/en/llms/p/2188.md - Price: 40.95 RON - Availability: In stock; 1-2 zile - Reference: 88028 · EAN: 5941816915674 1602 LCD display (2x16 characters) for the EGS002B board fitted with the EG8010 chip. Connects directly to the board's LCD port via a pin connector and is powered from the driver board. Displays inverter voltage, frequency, consumption and temperature in real time, without requiring additional programming. Dimensions: 3.5x2.2x1.2cm. ### 2.23inch OLED Display Module, Shield, Waveshare - Page: https://sigmanortec.ro/en/223inch-oled-display-module-shield-waveshare - Details: https://sigmanortec.ro/en/llms/p/2192.md - Price: 290.61 RON - Availability: In stock; 1-2 zile - Reference: 88038 · EAN: 5942013687814 2.23 inch OLED display module in shield format from Waveshare. Resolution 128x32 pixels, white pixel color, SSD1305 driver. Power supply 3.3V/5V, logic voltage 3.3V. Uses SPI interface by default, switchable to I2C via hardware resistor reconfiguration. Compatible with Raspberry Pi Pico, Pico W, Pico WH, RP2040, Jetson Nano. Dimensions 65 x 30.8mm, weight 15g. ### Proximity Sensor, Omron, E3Z-D61, Digital, 12-24V, NPN - Page: https://sigmanortec.ro/en/proximity-sensor-omron-e3z-d61-digital-12-24v-npn - Details: https://sigmanortec.ro/en/llms/p/2179.md - Price: 77.48 RON - Availability: In stock; 1-2 zile - Reference: 88014 · EAN: 5949826470015 - Specifications: Input Voltage: 12 - 24 VDC; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English. Omron E3Z-D61 proximity sensor with digital NPN output, supply voltage 12-24V DC. Adjustable sensing distance 3-20cm, NO/NC selection, reflective operating principle, wavelength 860nm. Response time ### Proximity Sensor, Omron, E3Z-D62, Digital, 12-24V, NPN - Page: https://sigmanortec.ro/en/proximity-sensor-omron-e3z-d62-digital-12-24v-npn - Details: https://sigmanortec.ro/en/llms/p/2180.md - Price: 82.20 RON - Availability: In stock; 1-2 zile - Reference: 88015 · EAN: 5941395350637 - Specifications: Input Voltage: 12 - 24 VDC; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English. Omron E3Z-D62 reflective proximity sensor with digital NPN output, 12-24V DC supply. Adjustable detection distance 5-50 cm, NO/NC selectable, status LED, response time ### Proximity Sensor, Omron, E3Z-D81, Digital, 12-24V, PNP - Page: https://sigmanortec.ro/en/proximity-sensor-omron-e3z-d81-digital-12-24v-pnp - Details: https://sigmanortec.ro/en/llms/p/2181.md - Price: 78.44 RON - Availability: In stock; 1-2 zile - Reference: 88016 · EAN: 5945056024332 - Specifications: Input Voltage: 12 - 24 VDC; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English. Reflective photoelectric proximity sensor Omron E3Z-D81 with digital PNP output, 12-24VDC supply. Adjustable detection distance 3-20cm, NO/NC selection, response time ### Proximity Sensor, Omron, E3Z-D82, Digital, 12-24V, PNP - Page: https://sigmanortec.ro/en/proximity-sensor-omron-e3z-d82-digital-12-24v-pnp - Details: https://sigmanortec.ro/en/llms/p/2182.md - Price: 82.56 RON - Availability: In stock; 1-2 zile - Reference: 88017 · EAN: 5940508667600 - Specifications: Input Voltage: 12 - 24 VDC; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English. Digital proximity sensor for precise detection at 5-50 cm in industrial applications, with PNP 12-24V output for quick integration into automation. The integrated LED instantly indicates the operating status, and the semi-adjustable adjustment allows distance adjustment and selection of NO or NC mode. The robust housing and metal base ensure safe mounting in production lines and handling equipment. Distance sensor, Omron E3Z-D82 (PNP), designed for precise object detection in industrial applications. The integrated LED indicator clearly displays the operating status, facilitating real-time activity monitoring. ### Alarm siren with light and sound, 120dB, 5-12V - Page: https://sigmanortec.ro/en/alarm-siren-with-light-and-sound-120db-5-12v - Details: https://sigmanortec.ro/en/llms/p/2184.md - Price: 23.23 RON - Availability: In stock; 1-2 zile - Reference: 88023 · EAN: 5949663991094 - Specifications: Input Voltage: 5-12 V; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English. Alarm siren module with flashing light and 120dB acoustic signal, for anti-burglary systems and automations. Power supply 5-12V DC, flash frequency 150 times/min, ABS housing, weight 75g, dimensions 122 x 72 x 43 mm. Powered via red wire (positive) and black wire (negative), typically connected through a relay; do not power with more than 12V. ### Resistive touch screen, 5.6inch , ST-05601, 5V - Page: https://sigmanortec.ro/en/resistive-touch-screen-56inch-st-05601-5v - Details: https://sigmanortec.ro/en/llms/p/2173.md - Price: 156.71 RON - Availability: In stock; 1-2 zile - Reference: 88004 · EAN: 5941019401363 - Specifications: Input Voltage: 5VDC; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English.; Model: ST-05601 Resistive touch screen, 5.6inch, model ST-05601, input voltage 5VDC, compatible with 5V logic. Response time ### DC Voltage Monitoring Module 0-99.9V, 12V, Charge-Discharge Protection Relay - Page: https://sigmanortec.ro/en/dc-voltage-monitoring-module-0-999v-12v-charge-discharge-protection-relay - Details: https://sigmanortec.ro/en/llms/p/2155.md - Price: 34.27 RON - Availability: In stock; 1-2 zile - Reference: 9982 · EAN: 5947102643580 - Specifications: tension: AD; Supply Voltage: 0; Maximum Input Voltage: 99.9; Output Type Voltage: Closed-Open Contact; Input Voltage: 12 V Digital module for monitoring DC voltage 0-99.9V and automatic control of a 10A relay, ideal for protecting batteries and sources in charging or discharging applications. Allows setting of minimum and maximum thresholds in 0.1V steps, displays voltage on LED display, includes 7 working modes for flexible control and calibration from buttons. Discharge monitoring module, 12VDC power supply, for voltage control and protection applications in circuits powered by direct current (DC) in the range 0-99.9V. Digital voltage control module with relay for applications requiring monitoring and protection of circuits powered by variable input voltages. The module monitors the voltage in a circuit (e.g. ### Bluetooth 5.0 Beacon Module, HolyIOT, 21014 - Page: https://sigmanortec.ro/en/bluetooth-50-beacon-module-holyiot-21014 - Details: https://sigmanortec.ro/en/llms/p/2160.md - Price: 117.16 RON - Availability: In stock; 1-2 zile - Reference: 9991 · EAN: 5946920103658 Bluetooth 5.0 Beacon Module HolyIOT 21014, based on the Nordic nRF52810 chip, with a transmission range of up to 50 m in open space. Compact, waterproof IP67 housing, built-in accelerometer for motion detection, configuration via the HolyIOT Beacon app. Powered by a CR2032 battery (not included), with a battery life of up to 180 days. Compatible with iOS 7.0+ and Android 4.3+. Dimensions: 30 mm x 8.4 mm, weight 6.5 g. ### Optical fingerprint sensor module, R307S, 3.3-5V - Page: https://sigmanortec.ro/en/optical-fingerprint-sensor-module-r307s-33-5v - Details: https://sigmanortec.ro/en/llms/p/2145.md - Price: 129.58 RON - Availability: In stock; 1-2 zile - Reference: 9972 · EAN: 5942571783768 - Specifications: Input Voltage: 3.3 - 5 V; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English. Optical biometric sensor for fast fingerprint identification and verification in embedded projects, ideal for access control, time attendance or smart locks. Integrates sensor, DSP and FLASH memory in an all-in-one solution, stores up to 300 fingerprints, has 500 DPI resolution and finger presence detection. Easily connects via UART TTL or USB 2.0, operates at 3.3-5V. R307S module, compatible with Arduino and other development boards, as well as directly with PC via USB UART interface. This is a biometric sensor, designed for accurate and fast fingerprint identification and verification. ### Inductive proximity sensor, PNP, LJ12A3-4, Z-BY, 6-36V - Page: https://sigmanortec.ro/en/inductive-proximity-sensor-pnp-lj12a3-4-z-by-6-36v - Details: https://sigmanortec.ro/en/llms/p/2149.md - Price: 14.77 RON - Availability: In stock; 1-2 zile - Reference: 88147 · EAN: 5943808428759 - Specifications: Maximum Input Voltage: 36; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English. PNP inductive sensor for non-contact detection of metal objects in automation and machinery. Offers a detection distance of up to 4 mm, operates at 6-36V DC, has a robust M12 metal housing with IP65 protection and red LED for activation indication. NO output for easy integration into PLCs, microcontrollers or input modules. PNP inductive sensor from the LJ12A3-4 series, designed for applications where it is necessary to identify metal objects without physical contact. It has a robust metal construction and a detection distance of up to 4 mm. The nickel-plated brass housing and ABS sensing surface ensure durability and resistance to industrial environments. ### Hall sensor module WCS1600, AC-DC, 100A - Page: https://sigmanortec.ro/en/hall-sensor-module-wcs1600-ac-dc-100a - Details: https://sigmanortec.ro/en/llms/p/2151.md - Price: 76.12 RON - Availability: In stock; 1-2 zile - Reference: 9979 · EAN: 5942462955229 - Specifications: Nominal Current: 100 A Hall sensor module WCS1600 for non-invasive measurement of AC or DC current, without interrupting the circuit. Supply voltage 5V DC, measurement range DC: ±100A, AC: up to 70A, sensitivity 20 mV/A. The conductor passes through a 9 mm hole. Features an analog output (Aout) proportional to the current and a digital output (Dout) with threshold adjustable via trimmer. Module dimensions: 37 x 30 x 22mm. ### Motor Overload Protection Module, 6-28V, 5A, PWM DC - Page: https://sigmanortec.ro/en/motor-overload-protection-module-6-28v-5a-pwm-dc - Details: https://sigmanortec.ro/en/llms/p/2152.md - Price: 60.88 RON - Availability: In stock; 1-2 zile - Reference: 9980 · EAN: 5945783425228 - Specifications: Maximum Input Voltage: 28; Maximum Output Current: 5; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English. GZ03 protection module for DC motors and circuits powered at 6-28V DC, with maximum output current of 5A for inductive loads (8A for resistive loads). Protects against overcurrent, short circuit and motor stall, compatible with PWM control. Adjustable current limit 0.2-10A, trip delay 0-20s, automatic reset 1-600s or manual via jumper. LEDs for power and alarm status. ### Magnetic encoder module, AS5600, 3.3V, I2C, Analog and Digital - Page: https://sigmanortec.ro/en/magnetic-encoder-module-as5600-33v-i2c-analog-and-digital - Details: https://sigmanortec.ro/en/llms/p/2113.md - Price: 14.12 RON - Availability: In stock; 1-2 zile - Reference: 9945 · EAN: 5942345713755 - Specifications: Input Voltage: 3.3 V; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English. Magnetic encoder module AS5600, contactless, for precise rotation angle measurement. Supply and logic voltage 3.3V, with I2C, PWM and analog 0-3.3V outputs. The DIR pin sets the direction of angle increase (GND/VCC). Detection distance 0.5-3mm, axial magnetic field. Dimensions 23x23mm. Includes a neodymium magnet. Used in motors and automation projects to measure shaft rotation. ### TLE5012 magnetic encoder module, radial magnet, 3.3-5V - Page: https://sigmanortec.ro/en/tle5012-magnetic-encoder-module-radial-magnet-33-5v - Details: https://sigmanortec.ro/en/llms/p/2114.md - Price: 35.40 RON - Availability: In stock; 1-2 zile - Reference: 9946 · EAN: 5948736875446 - Specifications: Input Voltage: 3.3 - 5 V; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English. Contactless magnetic encoder for precise angle measurement, ideal for motors and rotation sensing projects. Offers 12-bit resolution, I2C, PWM or analog outputs for quick integration with Arduino and other boards, operates at 3.3-5V with simple adaptation. Includes radial magnet and PCB with slots for easy mounting. The TLE5012 high-precision magnetic encoder module uses the AS5600 IC with 12-bit angle measurement capability, compatible with Arduino and other development boards. It provides a reliable, non-contact solution for precise angular position measurement, making it ideal for motors and other applications that require precise rotation detection. ### Sensor module BME680, I2C, 3.3V - Page: https://sigmanortec.ro/en/sensor-module-bme680-i2c-33v - Details: https://sigmanortec.ro/en/llms/p/2115.md - Price: 82.62 RON - Availability: Out of stock - Reference: 9949 · EAN: 5940934282606 - Specifications: Input Voltage: 3.3 V; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English. BME680 sensor module with I2C communication, 3.3V supply (operating range 1.7V-3.6V). Measures temperature (-40 to 85 °C, ±1.0 °C), humidity (0-100%, ±3%), atmospheric pressure (300-1100 hPa, ±1 hPa) and air quality (VOC). Also supports SPI. Pins: VCC, GND, SCL, SDA, SDO, CS. Suitable for weather stations, automation and IoT projects. ### AHT20 and BMP280 Sensor Module, Temperature, Humidity, Pressure, 2.8-5V - Page: https://sigmanortec.ro/en/aht20-and-bmp280-sensor-module-temperature-humidity-pressure-28-5v - Details: https://sigmanortec.ro/en/llms/p/2117.md - Price: 12.26 RON - Availability: In stock; 1-2 zile - Reference: 9951 · EAN: 5941711316163 - Specifications: Input Voltage: 2.8 - 5 V; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English. Compact module with AHT20 and BMP280 for precise temperature, humidity and pressure measurement, ideal for IoT, weather stations and automation. It operates at 2.8-5V with 3.3-5V logic level, communicates quickly and stably on I2C, connects simply on SDA and SCL and allows easy integration with Arduino and similar boards. Compact module that combines AHT20 and BMP280 digital sensors to provide precise temperature, humidity and atmospheric pressure measurements, compatible with Arduino and other development boards, and able to operate with voltages between 2.8V and 5VDC. ### Water level control relay module, 9-12V, automatic - Page: https://sigmanortec.ro/en/water-level-control-relay-module-9-12v-automatic - Details: https://sigmanortec.ro/en/llms/p/2106.md - Price: 38.90 RON - Availability: In stock; 1-2 zile - Reference: 9938 · EAN: 5948664340863 - Specifications: Supply Voltage: 9; Maximum Input Voltage: 12; Output Type Voltage: Closed-Open Contact; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English. Water level control relay module (ref. 9938), operates automatically at 9-12V AC or DC. Uses 3 electrodes (GND, minimum level, maximum level) to detect liquid level and drive a relay with open-close contact output, rated up to 10A, controlling power of 0-1KW at 220V. Features screw terminals for quick wiring without soldering. Board dimensions: 60 x 50 x 25 mm. ### Audio speaker protection module, power-on delay, 12-18VAC, 300W - Page: https://sigmanortec.ro/en/audio-speaker-protection-module-power-on-delay-12-18vac-300w - Details: https://sigmanortec.ro/en/llms/p/2109.md - Price: 71.63 RON - Availability: In stock; 1-2 zile - Reference: 9941 · EAN: 5945332836758 - Specifications: Power: Over 20W; Maximum Controlled Power: 300 W; Input Voltage: 12-18VAC; Input Voltage Type: AC Speaker protection module (ref. 9941), model UPC1237, with power-on delay of about 3 seconds and DC detection at about 1V. Operates at 12-18VAC, requires a separate power supply, supports 2 channels x 300W, uses dual Omron relays in parallel connection. LED indicates operating status. Not compatible with BTL circuits. ### Speaker protection module, delayed start, 12-15VAC, stereo - Page: https://sigmanortec.ro/en/speaker-protection-module-delayed-start-12-15vac-stereo - Details: https://sigmanortec.ro/en/llms/p/2110.md - Price: 26.63 RON - Availability: Out of stock - Reference: 9942 · EAN: 5946597873687 - Specifications: Input Voltage: 12-15VAC; Input Voltage Type: AC Stereo speaker protection module with delayed start (~3 seconds) and decoupling upon detection of DC voltage (~1V). Uses a 15A relay, two channels (R and L), status LED. Requires independent 12-15VAC power supply, cannot share power with other circuits. Dimensions 65x40mm. For BTL circuits, two modules per channel are required. Reference 9942. ### Low voltage disconnect relay module, 12V, adjustable - Page: https://sigmanortec.ro/en/low-voltage-disconnect-relay-module-12v-adjustable - Details: https://sigmanortec.ro/en/llms/p/2092.md - Price: 9.90 RON - Availability: In stock; 1-2 zile - Reference: 9921 · EAN: 5945258972691 - Specifications: Voltage Adjustment: Yes; Output Type Voltage: Closed-Open Contact; Input Voltage: 12 VDC; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English. Protects 12V batteries by automatically disconnecting the consumer when the voltage drops below the set threshold, preventing deep discharge, restarts itself when the voltage returns to a safe level, finely adjustable threshold from the multi-turn potentiometer, low standby consumption below 10mA, clear status indication via LEDs, relay for DC loads up to 10A resistive, recommended 5A. Undervoltage protection relay module, designed to turn off power to a resistive load when the voltage drops below a preset threshold, preventing deep battery discharge. Once the voltage returns to a safe level, the module automatically reactivates the load. ### Water level sensor, YB-2J-F, 12-32V, 4-20mA, IP68, 0-3m - Page: https://sigmanortec.ro/en/water-level-sensor-yb-2j-f-12-32v-4-20ma-ip68-0-3m - Details: https://sigmanortec.ro/en/llms/p/2095.md - Price: 358.96 RON - Availability: Out of stock - Reference: 9927 · EAN: 5945318425624 - Specifications: Supply Voltage: 12 VDC; Maximum Input Voltage: 32 VDC; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English. Submersible water level transmitter YB-2J-F, range 0-3m, pressure-based. Supply 12-32V DC, output 4-20mA, stainless steel 304 housing, IP68 protection. Accuracy ±0.5% FS, thermal compensation -10°C...70°C, cable length 5 meters, probe dimensions 108x28mm, weight 900g. Suitable for integration with PLC or SCADA in tanks and wells. ### Capacitive screen module, TFT LCD, 1.54 inch, ST7789, 3.3V, 3 Wire, 9BIT - Page: https://sigmanortec.ro/en/capacitive-screen-module-tft-lcd-154-inch-st7789-33v-3-wire-9bit - Details: https://sigmanortec.ro/en/llms/p/2085.md - Price: 81.06 RON - Availability: In stock; 1-2 zile - Reference: 9917 · EAN: 5948505168656 - Specifications: Input Voltage: 3.3 V; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English. 1.54 inch color TFT LCD display module with capacitive touch, 240x240 pixel resolution, IPS panel with 80 degree viewing angle. ST7789V LCD controller with 3-wire SPI interface, 9-bit transfer (no DC pin), capacitive touch with FT6236 driver over I2C interface. Supply voltage 2.5-3.3 VDC, logic voltage 3.3 VDC. Standard 2.54 mm pins, breadboard compatible. Not 5V tolerant. ### 360 degree LIDAR module, M1C1, rotating, UART - Page: https://sigmanortec.ro/en/360-degree-lidar-module-m1c1-rotating-uart - Details: https://sigmanortec.ro/en/llms/p/2090.md - Price: 137.08 RON - Availability: Out of stock - Reference: 9919 · EAN: 5949284991480 2D LiDAR sensor with 360° laser scanning, ideal for autonomous navigation, mapping and obstacle avoidance, quickly generates a detailed point cloud for precise positioning, detects up to 8 m with optimal performance between 0.1 and 6 m, angular resolution approx. 0.93° and scanning at 10 Hz, UART interface for easy integration and low typical consumption of 1 W. The LiDAR M1C1 Mini sensor performs 360° 2D laser scanning and operates on the triangulation principle. It is intended for autonomous navigation and mapping. It generates a point cloud of the surrounding environment, useful for obstacle avoidance, autonomous positioning, SLAM mapping, and creating 2D maps. ### TF-LC02 LiDAR module, ToF, UART, 3.3V - Page: https://sigmanortec.ro/en/tf-lc02-lidar-module-tof-uart-33v - Details: https://sigmanortec.ro/en/llms/p/2074.md - Price: 89.41 RON - Availability: Out of stock - Reference: R-9904 · EAN: 5940317614185 - Specifications: Input Voltage: 3.3 V Compact LiDAR ToF module for fast and reliable distance measurement in robots, drones and smart devices, offers UART communication at 3.3V for easy integration with Arduino and other boards, measures between 3 and 200 cm with accuracy up to ±2 cm, low consumption of approximately 15 mA, includes 6-pin PH1.0 connector and mounting ears for stable mounting. LiDAR module, TF-LC02, compatible Arduino and other development boards, based on the ToF (Time-of-Flight) principle and TDC (Time-to-Digital Converter) architecture, which allows distance measurement with very small dimensions. ### VL53L1X distance sensor, original IC, ToF, 3-5V - Page: https://sigmanortec.ro/en/vl53l1x-distance-sensor-original-ic-tof-3-5v - Details: https://sigmanortec.ro/en/llms/p/2075.md - Price: 51.75 RON - Availability: In stock; 1-2 zile - Reference: 9905 · EAN: 5946455389466 - Specifications: Input Voltage: 3 - 5 V ToF module for fast and accurate distance measurement, ideal for autonomous robots, obstacle avoidance and automation. Offers up to 4 m range in optimal conditions and up to 50 Hz, communicates easily via I2C with Arduino and other boards, has 27° FoV with programmable ROI for focus and multi-zone, includes XSHUT and interrupt pins for control and use with multiple sensors. ### TTGO LoRa32 V2.1 Development Board, 868MHz, WiFi, Bluetooth - Page: https://sigmanortec.ro/en/ttgo-lora32-v21-development-board-868mhz-wifi-bluetooth - Details: https://sigmanortec.ro/en/llms/p/2055.md - Price: 259.35 RON - Availability: In stock; 1-2 zile - Reference: 9916 · EAN: 5941066598962 Development module for IoT projects with LoRa communication on 868MHz, ideal for telemetry and remote control, offers high coverage up to 15 km in open field, quick integration with ESP32 for WiFi and Bluetooth, included SMA antenna for stable signal and integrated LCD display for local monitoring. The TTGO LoRa32 V2.1 development board is a last-generation wireless module, designed for IoT applications, intelligent systems and long-distance communication solutions. ### Current to voltage converter module, 0-20mA to 0-10V - Page: https://sigmanortec.ro/en/current-to-voltage-converter-module-0-20ma-to-0-10v - Details: https://sigmanortec.ro/en/llms/p/2041.md - Price: 12.75 RON - Availability: In stock; 1-2 zile - Reference: 9843 · EAN: 5943253369775 - Specifications: Minimum Output Voltage: 0; Maximum Output Voltage: 10; Output Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English. Converts 0-20mA or 4-20mA current signal into selectable 0-3.3V, 0-5V or 0-10V voltage, ideal for industrial sensors and integration with Arduino or STM. Offers stable transmission over long distances, high-precision sampling resistor with low drift, fine calibration via ZERO and SPAN potentiometers, wide 7-36V power supply and reverse polarity protection. Current-voltage conversion module, designed to convert the current signal of 0-20mA or 4-20mA into a variable voltage signal between 0-3.3V, 0-5V or 0-10V. ### Display module 1.5 inch, LCD, NTSC-PAL, 3-15V - Page: https://sigmanortec.ro/en/display-module-15-inch-lcd-ntsc-pal-3-15v - Details: https://sigmanortec.ro/en/llms/p/2036.md - Price: 191.31 RON - Availability: In stock; 1-2 zile - Reference: 9844 · EAN: 5944854565993 - Specifications: Supply Voltage: 3 V; Maximum Input Voltage: 15 V; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English. 1.5 inch LCD display module for CVBS composite video display, suitable for intercoms, car cameras, video doorbells and CCTV systems. Works with wide 3-15V power supply and low consumption, automatically switches between NTSC and PAL for maximum compatibility, offers clear image in 4:3 format at 480x240 resolution, simple connection via yellow RCA plus red and black wires. The ZT015GS01 1.5 inch LCD screen module, ideal for a wide range of applications such as video phones, car audio and video systems, intercoms, video doorbells, portable DVDs and closed circuit surveillance systems. ### Mini infrared sensor, PIR, HC-SR505 - Page: https://sigmanortec.ro/en/mini-infrared-sensor-pir-hc-sr505 - Details: https://sigmanortec.ro/en/llms/p/2039.md - Price: 9.27 RON - Availability: In stock; 1-2 zile - Reference: 9861 · EAN: 5943526410715 Mini PIR module for motion detection, ideal for automation, security and robotics projects. Compatible with Arduino, Raspberry Pi and other boards, uses BISS0001 chip, operates at 4.5-20V and delivers 3.3V digital signal, detects up to 3 m with a wide angle of up to 120 degrees, with adjustable delay for stable triggering. The PIR (passive infrared) sensor module, compatible with Arduino and other popular development boards such as Raspberry Pi, Beaglebone and 8051, equipped with the BISS0001 chip. It is designed for motion detection, ideal for integration into automation, security and robotics projects. ### Analog Hall sensor, magnetic, KY-035, 5V - Page: https://sigmanortec.ro/en/analog-hall-sensor-magnetic-ky-035-5v - Details: https://sigmanortec.ro/en/llms/p/2027.md - Price: 4.15 RON - Availability: In stock; 1-2 zile - Reference: 9837 · EAN: 5948388974603 - Specifications: Input Voltage: 5 V; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English.; Model: KY-035 Analog Hall sensor module KY-035, used to measure the intensity and polarity of a magnetic field, compatible with Arduino, ESP32 and ESP8266. Uses the 49E sensor, operates at 2.7-6V (specified input voltage 5V DC), current draw ~6mA, sensitivity 1.4-2.0mV/GS, operating temperature -40°C to 85°C, dimensions 18.5 x 15mm. Linear analog output with reference signal at half the supply voltage. ### Pixhawk 2.4.8 package, 32bit, with GPS M8N - Page: https://sigmanortec.ro/en/pixhawk-248-package-32bit-with-gps-m8n - Details: https://sigmanortec.ro/en/llms/p/2007.md - Price: 1100.74 RON - Availability: In stock; 1-2 zile - Reference: 88020 · EAN: 5949401164827 Pixhawk 2.4.8 package, a 32-bit flight controller with ARM Cortex-M4 processor and 2MB flash, compatible with ArduPilot and PX4 firmware. Features 14 PWM outputs and UART, I2C, SPI, CAN interfaces. The package includes a GPS M8N, buzzer, PPM encoder, I2C splitter, cables, microSD adapter and power-off button. ### Touch switch module, 25mm penetration, 12-24V, 60W, dimmable - Page: https://sigmanortec.ro/en/touch-switch-module-25mm-penetration-12-24v-60w-dimmable - Details: https://sigmanortec.ro/en/llms/p/2015.md - Price: 75.65 RON - Availability: In stock; 1-2 zile - Reference: 9825 · EAN: 5945419381461 - Specifications: Supply Voltage: 12; Maximum Input Voltage: 24; Maximum Controlled Power: 60; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English. FTS-02A touch switch module, dimmable, for hidden mounting behind wood, plastic or glass panels, detecting through material up to 25mm. Operates at 12-24VDC, supports up to 5A/60W. A short press toggles ON/OFF, a long press adjusts brightness between 10-100%. Dimensions 48x48x6mm, with wires marked IN/OUT, suitable for LED strips and light fixtures. ### Proximity sensor SN04-N2, 3 wires, NPN, NC, 10-30V - Page: https://sigmanortec.ro/en/proximity-sensor-sn04-n2-3-wires-npn-nc-10-30v - Details: https://sigmanortec.ro/en/llms/p/2016.md - Price: 16.52 RON - Availability: In stock; 1-2 zile - Reference: 9826 · EAN: 5942133736447 - Specifications: Output Type Voltage: Closed-Open Contact; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English. SN04-N2 inductive proximity sensor with NPN NC output on 3 wires (Vcc, GND, NPN NC), supply voltage 10-30V DC, maximum output current 300 mA. Detects metallic objects without contact at a sensing distance of 4 mm ±10%. Integrated LED for status indication, IP68 protection, 120 cm cable, frequency response 0,5 kHz. Suitable for automation and industrial applications. ### Proximity sensor SN04-P2, 3 wires, PNP, NC, 10-30V - Page: https://sigmanortec.ro/en/proximity-sensor-sn04-p2-3-wires-pnp-nc-10-30v - Details: https://sigmanortec.ro/en/llms/p/2017.md - Price: 16.52 RON - Availability: In stock; 1-2 zile - Reference: 9827 · EAN: 5942719292121 - Specifications: tension: AD; Input Voltage: 10-30 VDC SN04-P2 inductive proximity sensor with 3 wires, PNP NC output, for non-contact detection of metallic objects. Operates at 10-30V DC, maximum output current 300mA, detection distance 4 mm ±10% (lower for non-magnetic metals). Optimal target size 18x18x1mm, integrated status LED, IP68 protection, 120 cm cable and mounting holes. ### Facial recognition module, HLK-TX510, 3D, Binocular camera, display - Page: https://sigmanortec.ro/en/facial-recognition-module-hlk-tx510-3d-binocular-camera-display - Details: https://sigmanortec.ro/en/llms/p/2018.md - Price: 479.21 RON - Availability: In stock; 1-2 zile - Reference: 9828 · EAN: 5943921042504 Hi-Link HLK-TX510 3D facial recognition module with two binocular cameras (IR and RGB) and an integrated 2.8 inch color LCD display. Powered via USB-C at 5V/1A, with UART, USB, MIPI and I2C interfaces. Supports up to 1000 profiles, identification time under 600 ms, success rate above 90%, 2D/3D anti-spoofing protection. RAM 64M, FLASH 16M, display resolution 480x640 pixels, dimensions 96x64mm. ### 1.44 inch LCD display, Hat Raspberry Pi, 128x128, SPI, with buttons and joystick - Page: https://sigmanortec.ro/en/144-inch-lcd-display-hat-raspberry-pi-128x128-spi-with-buttons-and-joystick - Details: https://sigmanortec.ro/en/llms/p/1997.md - Price: 117.02 RON - Availability: In stock; 1-2 zile - Reference: 9816 · EAN: 5949210697219 LCD display Hat for Raspberry Pi, 1.44 inch screen diagonal, 128x128 pixel resolution, ST7735S driver, SPI interface, 3.3V operating voltage. RGB display with up to 65K colors, LED backlight, dimensions 65 x 30mm. Includes a 5-position joystick and 3 buttons for navigation, connects directly to Raspberry Pi pins. ### DIY FM radio kit, RDA5807S, with housing - Page: https://sigmanortec.ro/en/diy-fm-radio-kit-rda5807s-with-housing - Details: https://sigmanortec.ro/en/llms/p/1998.md - Price: 89.60 RON - Availability: Out of stock - Reference: 9817 · EAN: 5942410762985 Unassembled FM radio DIY kit, ideal for electronics and RF enthusiasts, offers clear reception on 87-108 MHz with RDA5807S module and noise reduction functions, displays frequency on digital display, includes TDA2822 amplifier for powerful sound, is powered by 5V via MicroUSB or 2 AA batteries and comes with acrylic case for protection and clean appearance. Unassembled FM Radio Kit with RDA5807S, ideal for electronics and radio frequency enthusiasts. It uses a Nixie tube RDA5807S radio module, known for its global compatibility with FM reception bands and advanced noise cancellation and sound enhancement functions. ### Original NEO-M8N GPS module with compass for Pixhawk - Page: https://sigmanortec.ro/en/original-neo-m8n-gps-module-with-compass-for-pixhawk - Details: https://sigmanortec.ro/en/llms/p/2003.md - Price: 374.27 RON - Availability: In stock; 1-2 zile - Reference: 9992 · EAN: 5947058085489 The original NEO-M8N GPS module with integrated compass for Pixhawk and PX4, offers fast satellite fix and precise navigation for stable flights. It comes pre-configured and tested from the factory, ready to use immediately, includes SAW filter and active interference detection for cleaner signal in difficult environments, and the compact design with self-adhesive sticker allows for quick and secure mounting. The original M8N GPS module with integrated compass is specially designed for use with PIX PX4 2.4.6 flight controllers, Pixhawk and other RC drones. This module offers high precision in navigation and fast satellite search, making it ideal for stable and controlled flights. ### Holybro radio telemetry set, 433mhz, 100mW - Page: https://sigmanortec.ro/en/holybro-radio-telemetry-set-433mhz-100mw - Details: https://sigmanortec.ro/en/llms/p/2006.md - Price: 679.22 RON - Availability: In stock; 1-2 zile - Reference: 88019 · EAN: 5944435843977 433MHz, 100mW radio telemetry set, for stable bidirectional communication between the drone and the ground station, plug and play compatible with Pixhawk Standard and other controllers. Runs SiK open source firmware optimized for MAVLink, easily integrates with Mission Planner, Ardupilot, QGroundControl and PX4, offers full duplex link with FHSS and error correction, with a range of over 300 m out of the box. Holybro SiK telemetry set that operates at a frequency of 433MHz, with a maximum power of 100mW. This is an open-source, compact and lightweight radio platform that facilitates bidirectional communication between the drone's autopilot and the base station on the ground. ### DC current detection relay module, with display, 12V, 0-10A - Page: https://sigmanortec.ro/en/dc-current-detection-relay-module-with-display-12v-0-10a - Details: https://sigmanortec.ro/en/llms/p/1980.md - Price: 45.21 RON - Availability: In stock; 1-2 zile - Reference: 9978 · EAN: 5946082437523 - Specifications: Maximum Output Current: 10 A; Output Type Voltage: Closed-Open Contact; Input Voltage: 12 V; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English. DC current detection module with display and integrated relay, supply voltage 12VDC. Measuring range 0-10A, resolution 0.01A, standby current ~20mA. The relay can switch a DC load up to 5A, with configurable thresholds (I1, I2) and several operating modes (P-11...P-52). Includes error calibration and display shutoff for reduced power consumption. Ref. 9978. ### Transmitter-receiver module set, 433MHz, STX882, SRX882, with antennas - Page: https://sigmanortec.ro/en/transmitter-receiver-module-set-433mhz-stx882-srx882-with-antennas - Details: https://sigmanortec.ro/en/llms/p/1982.md - Price: 26.96 RON - Availability: In stock; 1-2 zile - Reference: 9798 · EAN: 5949846323544 433MHz wireless transceiver set for commands and telemetry, ideal for Arduino and automation projects. Offers stable communication up to 100 m, high transmission power up to 50 mW at 3.6 V, high sensitivity for reliable reception and low consumption, includes two helical antennas for quick installation and better signal. The transmitter and receiver module set, STX882 and SRX882, is a wireless control device with small size, high power and low harmonics, which can reach a communication distance of up to 100 meters. It can reach a power of 50mW at a voltage of 3.6V, being among the most powerful transmission/reception modules at this voltage. ### Magnetic switch MC38, alarm, NC, 100V - Page: https://sigmanortec.ro/en/magnetic-switch-mc38-alarm-nc-100v - Details: https://sigmanortec.ro/en/llms/p/1984.md - Price: 6.03 RON - Availability: In stock; 1-2 zile - Reference: 9800 · EAN: 5948278919202 MC38 magnetic contact for doors and windows, used in alarm and access control systems. NC contact, stays closed while the magnet is nearby and opens when separated. Supports up to 100V and 0.5A. Housing made of resistant ABS, quick mounting on frame and sash, with two wires for connection to the alarm system. ### Digital amplifier module XH-M544, TPA3116, Mono, 150W, 12-24VDC - Page: https://sigmanortec.ro/en/digital-amplifier-module-xh-m544-tpa3116-mono-150w-12-24vdc - Details: https://sigmanortec.ro/en/llms/p/1985.md - Price: 39.06 RON - Availability: Out of stock - Reference: 9801 · EAN: 5947811953734 - Specifications: Type: Amplifier; tension: AD; Power: Over 20W; Supply Voltage: 12; Maximum Input Voltage: 24 Digital mono amplifier module XH-M544 with TPA3116D2 chip, Class D, output power up to 150W. Powered by 12-24VDC, signal-to-noise ratio of 100dB. Features an integrated volume potentiometer (180 degree rotation, do not force), a generous heatsink, and 3mm mounting holes at the corners. Dimensions: 77 x 73 x 16mm. Suitable for DIY audio projects and home or vehicle audio systems. ### Beacon module, Bluetooth 4.0, NRF51822, 2-3.3V - Page: https://sigmanortec.ro/en/beacon-module-bluetooth-40-nrf51822-2-33v - Details: https://sigmanortec.ro/en/llms/p/1968.md - Price: 88.58 RON - Availability: Out of stock - Reference: 9990 · EAN: 5941472210656 - Specifications: Input Voltage: 2 - 3.3 V; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English. Bluetooth 4.0 beacon based on NRF51822 for proximity identification and location in iBeacon, smart home, wearable or tracking applications. It operates at 2-3.3V with CR2032 battery, has ultra low standby consumption for long autonomy, integrated PCB antenna and communication range of up to 30 m in open space. The NRF51822 module is a highly energy-efficient wireless Bluetooth 4.0 Beacon device ideal for a wide variety of applications, including iBeacon systems, wearables, electronic games, and smart home control. Thanks to the BEacon technology used, it can be used for localization within the range of the signal. Its firmware also meets Apple's iBeacon technical standards. ### Human presence sensor, 24G, Hi-Link, radar, LDS2420 - Page: https://sigmanortec.ro/en/human-presence-sensor-24g-hi-link-radar-lds2420 - Details: https://sigmanortec.ro/en/llms/p/1971.md - Price: 35.34 RON - Availability: In stock; 1-2 zile - Reference: 9789 · EAN: 5948235148331 LDS2420 24 GHz radar module (Hi-Link) for indoor human presence detection, with antennas integrated on the PCB. Detects motion and micro-motion up to 8 m, ±60° detection angle. Power supply 3.3V (3.0-3.6V), average current 50 mA, HIGH signal on detection. Supports GPIO and UART interfaces, configurable sensitivity and detection zone. Dimensions 20 x 20mm. FCC, CE certified. ### Round LCD display module, 240x240, 1.28 inch, 3.3V, SPI - Page: https://sigmanortec.ro/en/round-lcd-display-module-240x240-128-inch-33v-spi - Details: https://sigmanortec.ro/en/llms/p/1973.md - Price: 64.07 RON - Availability: In stock; 1-2 zile - Reference: 9791 · EAN: 5940313247486 - Specifications: Input Voltage: 3.3 V; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English. Round TFT display, 1.28 inch, resolution 240x240, IPS technology with full RGB colors and visibility from any angle. Uses the GC9A01 driver chip and 4-wire SPI interface, supply voltage 3-5VDC (3.3V). Usable screen diameter 32.4mm, module dimensions 45.5 x 38 x 23mm. Compatible with Arduino and other development boards, testable with the Adafruit_GC9A01A library. ### ADC current acquisition module, N46IB02, 4-20mA, RS485 - Page: https://sigmanortec.ro/en/adc-current-acquisition-module-n46ib02-4-20ma-rs485 - Details: https://sigmanortec.ro/en/llms/p/1974.md - Price: 42.28 RON - Availability: In stock; 1-2 zile - Reference: 88002 · EAN: 5946373120127 ADC current acquisition module N46IB02 with 2 channels for 4-20mA measurement, RS485 Modbus RTU communication (function codes 03 and 06), allowing up to 247 devices to be connected on the same network. Operating voltage 8-25V, operating current 9-13mA. Measurement accuracy 1%, resolution 0.1mA, measurement range 0-25mA. Calibratable if error exceeds 1%. Suitable for sensor monitoring and industrial automation. ### Waterproof temperature probe, LM35, 1 meter, original IC - Page: https://sigmanortec.ro/en/waterproof-temperature-probe-lm35-1-meter-original-ic - Details: https://sigmanortec.ro/en/llms/p/1965.md - Price: 24.53 RON - Availability: In stock; 1-2 zile - Reference: 9840 · EAN: 5942192165325 Waterproof temperature probe with original LM35DZ sensor for measurements in liquids and humid environments, range 0..+100°C, analog output. Stainless steel housing (6 x 50 mm), corrosion resistant, with heat-shrink protection on the pins. 1 meter cable, supply voltage 4-20V. Red wire VCC, black GND, yellow analog output signal. ### Sound playback module, Playback, with 5W amplifier, 8M memory, UART, DY-SV8F - Page: https://sigmanortec.ro/en/sound-playback-module-playback-with-5w-amplifier-8m-memory-uart-dy-sv8f - Details: https://sigmanortec.ro/en/llms/p/1924.md - Price: 44.67 RON - Availability: In stock; 1-2 zile - Reference: 8014 · EAN: 5941835418491 - Specifications: Power: 0 - 20W DY-SV8F sound playback module for electronic projects, offering MP3/WAV playback controlled via UART, I/O or One-line. Includes a 5W class D amplifier for 4 ohm 3-5W speakers, integrated 8MB flash memory (no SD card), file updates via Micro USB and a 3.5mm audio jack output. Power supply 5VDC, operating temperature -20~85C, dimensions 40x40x4.5mm. ### 4G LTE Antenna, Magnetic, SMA Male, 698-2700 MHz, 12 dBi - Page: https://sigmanortec.ro/en/4g-lte-antenna-magnetic-ts9-sma-tata-698-2700mhz-12dbi - Details: https://sigmanortec.ro/en/llms/p/1914.md - Price: 27.59 RON - Availability: In stock; 1-2 zile - Reference: 9772 · EAN: 5941461420554 Magnetic 4G LTE antenna with SMA Male connector, frequency range 698-2700MHz, gain 12dBi, VSWR ≤2.0, vertical polarization, maximum power 100W, nominal impedance 75Ω. Antenna size 320mm, RG174 cable 1500mm long. Lightning protection via DC grounding, operating temperature -30 - +60°C. Compatible with FM, GSM, GPRS, 3G, 4G, 2.4G and 5G. ### Current sensor, analog acquisition, 2 channels, 0-20mA, 4-20mA, 8-25V, RS485 - Page: https://sigmanortec.ro/en/current-sensor-analog-acquisition-2-channels-0-20ma-4-20ma-8-25v-rs485 - Details: https://sigmanortec.ro/en/llms/p/1915.md - Price: 49.30 RON - Availability: Out of stock - Reference: R-9773 · EAN: 5943470591379 2-channel analog acquisition module for measuring 0-20mA and 4-20mA current signals, ideal for automation and instrumentation. Communicates via RS485 with Modbus RTU support for quick integration into PLC or SCADA. Operates at 8-25V DC, offers good resolution and typical 1% accuracy, in a compact, easy-to-mount format. Analog current acquisition module 4-20mA and 0-20mA, N46IB02, with RS485 communication and Modbus RTU support, designed for simple and efficient integration in automation, instrumentation and measurement systems. The module is specially optimized for the standard 0-20mA and 4-20mA signals frequently used in automation and instrumentation. ### Power amplifier filter module, 12A, 1200W - Page: https://sigmanortec.ro/en/power-amplifier-filter-module-12a-1200w - Details: https://sigmanortec.ro/en/llms/p/1918.md - Price: 71.85 RON - Availability: In stock; 1-2 zile - Reference: 9776 · EAN: 5949543947333 - Specifications: Nominal Current: 12 A; Maximum Controlled Power: 1200 W Filter and rectification module for dual power amplifiers, supports 12A and 1200W. Works in single or dual configuration, with four rectifier bridges and 20 LOW ESR capacitors rated 25V connected in series. Maximum AC voltage 50V x2, maximum current 6A x2. Large terminals and protective caps for secure connection. Dimensions: 119 x 51 x 18mm. ### 2-channel remote control, 433MHz, 6V - Page: https://sigmanortec.ro/en/2-channel-remote-control-433mhz-6v - Details: https://sigmanortec.ro/en/llms/p/1921.md - Price: 26.02 RON - Availability: In stock; 1-2 zile - Reference: 9745 · EAN: 5940886405795 - Specifications: tension: AD; Input Voltage: 6 V; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English. 2-channel remote control (A and B) operating at 433MHz, for remote control of compatible devices and systems, suitable for automation and access systems. Operates at 6V DC, using 2 CR2016 batteries (not included) connected in series. Range 25-50 m, resistant plastic housing, with keychain attachment. ### Power module for APM, with BEC 5.3V, XT60, 30V, 90A - Page: https://sigmanortec.ro/en/power-module-for-apm-with-bec-53v-xt60-30v-90a - Details: https://sigmanortec.ro/en/llms/p/1904.md - Price: 43.31 RON - Availability: In stock; 1-2 zile - Reference: 9948 · EAN: 5941296029205 - Specifications: Nominal Current: 90 A; Maximum Input Voltage: 30 V; Output Voltage: 5.3 V; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English.; Output Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English. Power module for APM 2.5/2.6/2.8 and Pixhawk flight controllers, featuring an XT60 connector, input voltage 8-29VDC (max 30V), compatible with 2S-7S LiPo batteries. Provides BEC 5.3V/3A for controller and accessories (not for servos), 90A current sensor and voltage sensor, data sent via 5V ADC to the controller through a 6-pin Molex cable. Dimensions 25x21x9mm, weight 17g. ### 3D Printer Control Module, 12864 Display, Ramps 1.4, SD Card - Page: https://sigmanortec.ro/en/3d-printer-control-module-12864-display-ramps-14-sd-card - Details: https://sigmanortec.ro/en/llms/p/1912.md - Price: 92.75 RON - Availability: In stock; 1-2 zile - Reference: 9769 · EAN: 5943027544537 Control panel with 12864 LCD display (20x4 characters) for RAMPS 1.4, compatible via the included adapter. It features an SD card reader for printing without a PC, a rotary encoder for menu navigation and adjustments, a buzzer for acoustic feedback, a STOP button for quick shutdown, and a potentiometer for contrast adjustment. Powered through the connection to the RAMPS 1.4 board. ### Amplifier module XH-M573, TPA3116D2, 100W, 2.1 channels - Page: https://sigmanortec.ro/en/amplifier-module-xh-m573-tpa3116d2-100w-21-channels - Details: https://sigmanortec.ro/en/llms/p/1884.md - Price: 106.41 RON - Availability: In stock; 1-2 zile - Reference: 9751 · EAN: 5940701928348 - Specifications: Type: Amplifier; tension: AD; Power: Over 20W 2.1 digital amplifier on TPA3116D2, ideal for compact audio projects, powers two stereo speakers and a subwoofer for powerful and balanced sound. It has volume, bass and stereo level adjustment, operates at 10-18V DC, offers audio input via AUX 3.5 mm or 3-pin connector, compatible with 4-8 ohm speakers. XH-M573 amplifier module using TPA3116D2 IC, This is a 2.1 digital amplifier, designed to provide an audio solution with a 2.1 channel configuration, capable of powering two stereo speakers with 80W each and a subwoofer with 100W, thus ensuring a deep and well-balanced audio experience. This amplifier module features total volume, bass and stereo adjustment. ### Antenna 433MHz, 3dBi, SMA Tata, 11cm - Page: https://sigmanortec.ro/en/antenna-433mhz-3dbi-sma-tata-11cm - Details: https://sigmanortec.ro/en/llms/p/1892.md - Price: 11.07 RON - Availability: In stock; 1-2 zile - Reference: 9758 · EAN: 5941520130233 Foldable antenna for 433MHz with 3dBi gain and SMA male connector. Total length 11cm. It can rotate freely and fold up to 90 degrees, suitable for wireless (non WiFi) communication projects over medium and long distances, in portable applications. ### Human presence sensor, HLK-LD2410, 24GHz, Radar, 5-12V - Page: https://sigmanortec.ro/en/human-presence-sensor-hlk-ld2410-24ghz-radar-5-12v - Details: https://sigmanortec.ro/en/llms/p/1873.md - Price: 53.78 RON - Availability: Out of stock - Reference: 9743 · EAN: 5941878213909 - Specifications: Input Voltage: 5-12 V; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English.; Model: HLK-LD2410 24GHz radar module for detecting human presence indoors, recognizes moving or stationary people including micro-movements and estimates the distance to the target, covers up to 5 m with a wide detection angle, is powered by 5-12V and easily integrates into smart systems via GPIO or UART outputs, with adjustable parameters for sensitivity and area. HLK-LD2410 is a high sensitivity 24GHz human presence status detection module developed by Hilink Electronics. ### IO port expansion module, PCF8575, I2C, 16 ports, 2.5-5.5V - Page: https://sigmanortec.ro/en/io-port-expansion-module-pcf8575-i2c-16-ports-25-55v - Details: https://sigmanortec.ro/en/llms/p/1837.md - Price: 14.47 RON - Availability: In stock; 1-2 zile - Reference: 9717 · EAN: 5943828306723 - Specifications: Input Voltage: 2.5 - 5.5 V; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English. IO expansion module with PCF8575 chip, I2C communication, featuring 16 individually configurable input/output ports. Operates at 2.5-5.5V DC, maximum current 100mA, default I2C address 0x20 (changeable via A1/A2 solder pads). Includes onboard 3.3V logic level converter and open-drain interrupt pin. Dimensions: 32 x 22mm. Suitable for relays, LEDs, buttons, buzzers. ### Sound playback module, Playback, with 5W amplifier, 8M memory, UART, DY-SV5W, SD Card - Page: https://sigmanortec.ro/en/sound-playback-module-playback-with-5w-amplifier-8m-memory-uart-dy-sv5w-sd-card - Details: https://sigmanortec.ro/en/llms/p/1842.md - Price: 38.90 RON - Availability: Out of stock - Reference: 9721 · EAN: 5949462584268 DY-SV5W smart sound playback module with 5W Class D amplifier for 4ohm 3-5W speakers. Plays MP3 and WAV from 8Mbyte Flash memory or SD card, controlled via UART, I/O or one-line. 24-bit DAC, 85dB SNR, 5VDC supply, 3.5mm jack output, file update via Micro USB. Dimensions 35x35x4.5mm. ### Mini PIR sensor, SR602, motion detection, 3.3-15V - Page: https://sigmanortec.ro/en/mini-pir-sensor-sr602-motion-detection-33-15v - Details: https://sigmanortec.ro/en/llms/p/1844.md - Price: 8.35 RON - Availability: In stock; 1-2 zile - Reference: 9723 · EAN: 5940219587563 - Specifications: Input Voltage: 3.3 - 15 V; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English. Mini PIR module for motion detection, ideal for automation, security and Arduino projects. It operates at 3.3-15V and offers a safe 3.3V digital output, simply connects on 3 pins. Detects presence up to 5 m, recommended 3.5 m, with a default HIGH time of 2.5 s settable. Can be adapted to work only at night via photoresistor. The Mini SR602 module, compatible with Arduino and other development boards, is a motion sensor based on pyrolytic infrared technology, offering a compact solution for motion detection. This module is ideal for home automation projects, security systems, and applications where it is necessary to detect human or animal movement. ### DS18B20 temperature sensor adapter module - Page: https://sigmanortec.ro/en/ds18b20-temperature-sensor-adapter-module - Details: https://sigmanortec.ro/en/llms/p/1845.md - Price: 6.03 RON - Availability: In stock; 1-2 zile - Reference: 9724 · EAN: 5948655400996 Adapter board for the DS18B20 probe, featuring a screw terminal for securely connecting the probe wires and 2.54mm pins compatible with breadboards. It integrates a 4.7K pull-up resistor on the digital pin and a capacitor on the power supply for stable operation at 3.3-5VDC. The set includes the adapter module and 3 DuPont female-female wires. The DS18B20 probe is not included. Dimensions: 24 x 21mm. ### Current and power monitor sensor, INA226, I2C, IIC, Bidirectional, 16Bit, 2.7-5.5V - Page: https://sigmanortec.ro/en/current-and-power-monitor-sensor-ina226-i2c-iic-bidirectional-16bit-27-55v - Details: https://sigmanortec.ro/en/llms/p/1830.md - Price: 15.58 RON - Availability: In stock; 1-2 zile - Reference: 9713 · EAN: 5940919401893 - Specifications: Supply Voltage: 2.7; Maximum Input Voltage: 5.5; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English. INA226 sensor module for current and power monitoring, I2C/SMBus interface, compatible with Arduino and other boards. Measures bidirectionally (high-side/low-side) current, voltage and power, 16-bit resolution. Monitored bus voltage 0-36VDC, supply 2.7-5.5VDC. Up to 16 I2C addresses, maximum gain error 0.1%, maximum offset 10uV. Pins: VBUS, SDA/SCL, ALERT, A0/A1, IN+/IN-. ### Ultrasonic sensor distance display module HC-SR04 - Page: https://sigmanortec.ro/en/ultrasonic-sensor-distance-display-module-hc-sr04 - Details: https://sigmanortec.ro/en/llms/p/1834.md - Price: 21.70 RON - Availability: In stock; 1-2 zile - Reference: 9715 · EAN: 5946711144372 Distance display module for the HC-SR04 ultrasonic sensor (reference 9715). Allows measuring and displaying the distance to objects without an external microcontroller, suitable for testing and educational projects. Operates at 5VDC, shows values on an LED display, compatible with the HC-SR04 sensor, detection angle up to 15 degrees. Package includes only the display module, not the HC-SR04 sensor. ### Voltage and current monitor sensor, 3 channels, INA3221, I2C, SMBUS, 2.7-5.5V - Page: https://sigmanortec.ro/en/voltage-and-current-monitor-sensor-3-channels-ina3221-i2c-smbus-27-55v - Details: https://sigmanortec.ro/en/llms/p/1820.md - Price: 15.25 RON - Availability: In stock; 1-2 zile - Reference: 9707 · EAN: 5942025356999 - Specifications: Input Voltage: 2.7 - 5.5 V; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English. INA3221 sensor module with 3 independent channels for voltage and current monitoring, compatible with Arduino and other 3V or 5V boards. Communicates via I2C/SMBUS, operates at 2.7-5.5V, typical current 350 µA. Voltage accuracy ±80 µV, current accuracy 0.25%, measured current 1.5A per channel. Features four programmable I2C addresses, configurable averaging and programmable alert outputs. ### Laser sensor, emitter-receiver, PNP NO, E3F-20B1, 6-36V, 20M - Page: https://sigmanortec.ro/en/laser-sensor-emitter-receiver-pnp-no-e3f-20b1-6-36v-20m - Details: https://sigmanortec.ro/en/llms/p/1810.md - Price: 71.11 RON - Availability: In stock; 1-2 zile - Reference: 9698 · EAN: 5948436184084 - Specifications: Input Voltage: 6 - 36 V; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English. Laser emitter-receiver barrier for rapid detection by beam interruption, ideal for automation, gates, conveyor belts, and parts counting. It offers a PNP NO output for easy integration into PLCs, 6-36VDC power supply, working distance up to 20 m, and simple alignment thanks to the 3 mm beam and the status LED on the receiver. The laser barrier sensor set consists of a laser beam emitter module and a receiver module, supplied together with the nuts and washers required for mounting. Detection is performed by the occlusion method, meaning by interrupting the laser beam between the emitter and receiver, which allows the presence of an object to be detected practically at the speed of light. ### Electronic scale display module, for HX711, load cell - Page: https://sigmanortec.ro/en/electronic-scale-display-module-for-hx711-load-cell - Details: https://sigmanortec.ro/en/llms/p/1811.md - Price: 25.89 RON - Availability: In stock; 1-2 zile - Reference: 9699 · EAN: 5940841723674 Digital display for weighing with HX711, takes the signal from the HX711 module connected to the load cell and directly displays the weight on the 4-digit LED tube, up to 9999 g. Compatible with common sensors 1-20 kg, optimal for 5-10 kg, 3-5.5 V power supply and memory for maintaining calibration after power off. The load reading module for the HX711 AD is a high precision weight measuring instrument with a distinct digital display capability. The module requires connection to the HX711 module, which in turn is connected to the load cell. It just displays the weight based on the signal reading received from the HX711. ### Audio amplifier kit, DIY, TPA3116D2, 50Wx2, 100Wx1, 2.1, HiFi, with case - Page: https://sigmanortec.ro/en/audio-amplifier-kit-diy-tpa3116d2-50wx2-100wx1-21-hifi-with-case - Details: https://sigmanortec.ro/en/llms/p/1795.md - Price: 159.10 RON - Availability: In stock; 1-2 zile - Reference: 9684 · EAN: 5947378746190 - Specifications: Type: Amplifier; tension: AD; Power: Over 20W HiFi 2.1 amplifier for DIY projects, offers 2x50W stereo and 100W on subwoofer for clear sound and powerful bass. Based on TPA3116D2 with high efficiency and low noise, includes NE5532 op-amp and AUX input for quick connection. Transparent acrylic housing highlights the electronics and integrates easily into any setup. The TPA3116D2 is a HIFI 2.1 audio amplifier with superior sound quality, offering an authentic and dynamic audio experience. With two stereo channels of 50W each and a subwoofer channel of 100W, this amplifier ensures a clear and powerful reproduction of low, medium and high frequencies. ### Miniature amplifier module, PAM8403, 2.2-5V - Page: https://sigmanortec.ro/en/miniature-amplifier-module-pam8403-22-5v - Details: https://sigmanortec.ro/en/llms/p/1796.md - Price: 3.58 RON - Availability: In stock; 1-2 zile - Reference: 9685 · EAN: 5941289792963 - Specifications: Type: Amplifier; tension: AD; Power: 0 - 20W; Supply Voltage: 2.2; Maximum Input Voltage: 5 Compact stereo amplifier module based on the PAM8403 chip. Delivers 2 x 3W into 4 Ohm speakers with efficiency up to 90%. Operates at 2.2-5 VDC and can be powered from Li-Ion batteries or USB. Small dimensions of 21 x 18 mm make it suitable for DIY projects and portable devices where space is limited. ### 2-channel amplifier module, XH-M543, TPA3116D2, 120Wx2, 12-24V - Page: https://sigmanortec.ro/en/2-channel-amplifier-module-xh-m543-tpa3116d2-120wx2-12-24v - Details: https://sigmanortec.ro/en/llms/p/1798.md - Price: 41.93 RON - Availability: In stock; 1-2 zile - Reference: 9687 · EAN: 5947724890010 - Specifications: Type: Amplifier; tension: AD; Power: Over 20W; Supply Voltage: 12; Maximum Input Voltage: 24; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English. Stereo amplifier module XH-M543 based on the TPA3116D2, 2 channels, output power 2x120W at 24VDC and 2x50W at 12VDC. Supply voltage DC 12-24V, efficiency over 90%, SNR 100dB. Audio input via a 3-pin XH2.54 connector, cable included. Separate volume potentiometers per channel. Dimensions 92x68mm. No reverse-polarity or short-circuit protection. ### I2C port expansion module, PCF8574, cascade support, 2.5-6V - Page: https://sigmanortec.ro/en/i2c-port-expansion-module-pcf8574-cascade-support-25-6v - Details: https://sigmanortec.ro/en/llms/p/1802.md - Price: 7.27 RON - Availability: In stock; 1-2 zile - Reference: 9691 · EAN: 5945286574935 - Specifications: tension: AD; Supply Voltage: 2.5; Maximum Input Voltage: 6 I2C port expansion module based on the PCF8574/PCF8574T chip, offering 8 individually configurable bidirectional I/O channels. Operates at 2.5V-6V, communicates over I2C at up to 400kHz, with a maximum current of 100mA per pin. I2C address selectable via 3 switches (A0-A2), supports cascading up to 8 modules on the same bus. Dimensions: 36 x 16mm. ### CO, VOC, NO2, NH3 sensor module, MICS-6814, 5V - Page: https://sigmanortec.ro/en/co-voc-no2-nh3-sensor-module-mics-6814-5v - Details: https://sigmanortec.ro/en/llms/p/1785.md - Price: 205.17 RON - Availability: In stock; 1-2 zile - Reference: 9674 · EAN: 5947140560108 - Specifications: Input Voltage: 5 V; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English. Air quality monitoring module, detects CO, VOC, NO2 and NH3 with the MICS-6814 sensor, ideal for Arduino projects, smart home automation and industrial applications. It operates at 5V, offers separate analog outputs for each gas, has low consumption of approximately 30mA and compact dimensions of 17 x 14 mm. Air quality sensor, compatible with Arduino and other development boards, is an advanced device designed to detect and measure the concentrations of carbon monoxide (CO), volatile organic compounds (VOC), nitrogen dioxide (NO2) and ammonia (NH3) in diverse environments. ### DIY Bluetooth speaker kit, USB, 2 channels, with case, 5V - Page: https://sigmanortec.ro/en/diy-bluetooth-speaker-kit-usb-2-channels-with-case-5v - Details: https://sigmanortec.ro/en/llms/p/1765.md - Price: 85.82 RON - Availability: In stock; 1-2 zile - Reference: 9656 · EAN: 5945107580749 - Specifications: Type: Amplifier; tension: AD; Power: 0 - 20W; Input Voltage: 5 V; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English. DIY set for assembling a functional Bluetooth speaker, ideal for learning soldering and electronic assembly. Includes two 3W 4Ohm 2-channel speakers, plays music via Bluetooth or directly from USB, has LEDs that pulsate to the rhythm of the music, transparent acrylic housing is mounted with screws, IR remote control for remote control. Set for assembling a functional bluetooth speaker, with two speakers and LEDs that light up in tune with the music. It uses two 3W and 4Ohm speakers and can play music even from USB memory sticks. The case is made of acrylic panels that are joined with screws. ### WiFi module for RD6006 - Page: https://sigmanortec.ro/en/wifi-module-for-rd6006 - Details: https://sigmanortec.ro/en/llms/p/1751.md - Price: 89.38 RON - Availability: In stock; 1-2 zile - Reference: 9746 · EAN: 5941031241282 WiFi module for the RD6006 power supply, reference 9746. It connects directly to the existing internal socket of the power supply without modifications and is compatible exclusively with RD6006. It uses an integrated ESP8266 for WiFi communication, enabling wireless control and monitoring, access to settings and remote reading of parameters, suitable for automation and integration into laboratory projects. ### ESP-15F module, ESP8266, Serial, WiFi, 32-bit, 5V - Page: https://sigmanortec.ro/en/esp-15f-module-esp8266-serial-wifi-32-bit-5v - Details: https://sigmanortec.ro/en/llms/p/1732.md - Price: 37.76 RON - Availability: In stock; 1-2 zile - Reference: 9626 · EAN: 5941496523800 - Specifications: Input Voltage: 5 V; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English. WiFi module based on ESP8266, ideal for quickly connecting Arduino and IoT projects to the 2.4GHz network, interfaces simply via serial UART at 115200 bps, runs on 32-bit architecture with 5V power supply and 3.3V logic, includes PCB antenna for compact installation and supports WEP, WPA, WPA2 security for reliable transmissions. The ESP-15F module, compatible with Arduino and other development boards, is a wireless communication module that uses the Wi-Fi standard for data transmission. It is based on the ESP8266 microcontroller with a 32-bit architecture and works with a 5-volt supply voltage. The module is designed to be connected to a device via the serial port. ### Temperature and humidity sensor, SHT35, I2C - Page: https://sigmanortec.ro/en/temperature-and-humidity-sensor-sht35-i2c - Details: https://sigmanortec.ro/en/llms/p/1735.md - Price: 87.93 RON - Availability: In stock; 1-2 zile - Reference: 9682 · EAN: 5944625157556 Advanced module for precise temperature and humidity measurement in Arduino projects and embedded systems, offers stable readings thanks to factory calibration and digital compensation. Communicates simply via I2C with selectable address, operates at 2.4-5.5V and has low power consumption, ideal for weather stations, automation and industrial monitoring. The SHT35 module, compatible with Arduino and other development boards, is an advanced temperature and humidity sensor designed to provide accurate and reliable measurements in a variety of applications. It uses an I2C communication interface, which makes it compatible with a wide range of microcontrollers and embedded systems. ### OLED display module, RGB, 1.5 inch, 65K colors, 6-bit, 128x128, SPI, 3.3-5V - Page: https://sigmanortec.ro/en/oled-display-module-rgb-15-inch-65k-colors-6-bit-128x128-spi-33-5v - Details: https://sigmanortec.ro/en/llms/p/1737.md - Price: 214.09 RON - Availability: In stock; 1-2 zile - Reference: 9630 · EAN: 5945011576722 - Specifications: Input Voltage: 3.3 - 5 V; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English. OLED RGB display module, 1.5 inch, 128x128 pixel resolution, 65K colors (6-bit RGB), SPI interface (3-wire/4-wire), driver IC 1351. Operating voltage 3.3-5V, consumption under 100 mA. Compatible with Arduino, Raspberry Pi and STM32. Features backlight control and fast response time, suitable for IoT and embedded projects needing a compact display. ### Analog to digital converter module, ADC, ADS1115, 16 bits, 2-5V - Page: https://sigmanortec.ro/en/analog-to-digital-converter-module-adc-ads1115-16-bits-2-5v - Details: https://sigmanortec.ro/en/llms/p/1710.md - Price: 18.08 RON - Availability: Out of stock - Reference: 9607 · EAN: 5943042233904 - Specifications: Supply Voltage: 2; Maximum Input Voltage: 5; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English. ADS1115-based analog to digital converter module with 16-bit resolution, offering 4 single-ended or 2 differential analog inputs. Communicates via I2C with address selectable between 0x48 and 0x4B. Operates at 2-5VDC, with programmable data rate of 8SPS-860SPS and low-power single-shot mode. Dimensions: 27x18mm. Compatible with Arduino and other development boards. ### Overcurrent protection module, 5A, adjustable, with relay, 12VDC - Page: https://sigmanortec.ro/en/overcurrent-protection-module-5a-adjustable-with-relay-12vdc - Details: https://sigmanortec.ro/en/llms/p/1715.md - Price: 18.05 RON - Availability: Out of stock - Reference: 9606 · EAN: 5940848739029 - Specifications: Current Adjustment: Yes; Maximum Output Current: 5; Output Type Voltage: Closed-Open Contact; Input Voltage: 12 VDC; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English. Overcurrent protection module for AC circuits, with automatic disconnection via a 220VAC 10A relay when the current exceeds the adjustable threshold of up to 5A. Powered at 12VDC, current consumption ### Audio amplifier module, 1 channel, 60W, 4-8ohm, TPA3118, 8-24VDC, digital - Page: https://sigmanortec.ro/en/audio-amplifier-module-1-channel-60w-4-8ohm-tpa3118-8-24vdc-digital - Details: https://sigmanortec.ro/en/llms/p/1718.md - Price: 21.65 RON - Availability: In stock; 1-2 zile - Reference: 9610 · EAN: 5944403291786 - Specifications: Type: Amplifier; tension: AD; Power: Over 20W; Supply Voltage: 8; Maximum Input Voltage: 24 Mono audio amplifier module based on the TPA3118 in PBTL configuration, with an output power of up to 60W. It operates on a supply voltage of 8-24VDC and is compatible with 4-8 ohm speakers (8 ohm recommended). It features low noise and distortion, connection via dedicated pads (optional connectors on the PCB) and dimensions of 46 x 35mm, suitable for speakers, subwoofers or ceiling speakers. ### Power sensor, bidirectional, serial communication, ADC, CS5460A - Page: https://sigmanortec.ro/en/power-sensor-bidirectional-serial-communication-adc-cs5460a - Details: https://sigmanortec.ro/en/llms/p/1719.md - Price: 53.72 RON - Availability: In stock; 1-2 zile - Reference: 9612 · EAN: 5944759663695 Bidirectional power sensor module with Delta-Sigma ADC CS5460A, for AC energy monitoring: calculates active power, instantaneous power, IRMS and VRMS. Accuracy +/-0.1%, supply voltage 3-5VDC, maximum consumption 12mW, operating temperature -20-65°C, dimensions 50 x 32mm. Communicates via 3-wire serial with Arduino and other boards. Supports auto-boot with external EEPROM for autonomous operation, 2.5V voltage reference. ### LED digital display, 10 segments, graphic bar - Page: https://sigmanortec.ro/en/led-digital-display-10-segments-graphic-bar - Details: https://sigmanortec.ro/en/llms/p/1720.md - Price: 4.96 RON - Availability: In stock; 1-2 zile - Reference: 9613 · EAN: 5948371474936 LED display with 10 segments, bar graph type, green color, with anode per segment and common cathode. Supply voltage 2 - 2.2VDC, current 20mA per LED. Parallel interface, suitable for displaying intensity levels in electronic projects, including with Arduino boards using resistors for 3.3V or 5V. Operating temperature: -40°C to +85°C. Dimension: 25 x 10 x 15mm. Reference: 9613. ### Radio serial communication module, 433MHz, HC-12, SI4438, 1km - Page: https://sigmanortec.ro/en/radio-serial-communication-module-433mhz-hc-12-si4438-1km - Details: https://sigmanortec.ro/en/llms/p/1700.md - Price: 30.50 RON - Availability: In stock; 1-2 zile - Reference: 9587 · EAN: 5946696352601 HC-12 radio transceiver module with SI4438 chip, UART/TTL interface, for bidirectional wireless communication at 433MHz. Transmission range up to 1km in open field, adjustable output power up to 20dBm, maximum speed 115200bps, configurable via AT commands. Operating voltage 3.2-5.5VDC, metal helical antenna included, dimensions 29 x 13mm. Not compatible with HC-11 or HC-06 modules. ### TDA7294 audio amplifier module, 12-32VAC, 100W, 1 channel - Page: https://sigmanortec.ro/en/tda7294-audio-amplifier-module-12-32vac-100w-1-channel - Details: https://sigmanortec.ro/en/llms/p/1701.md - Price: 43.00 RON - Availability: Out of stock - Reference: 9588 · EAN: 5942701899451 - Specifications: Type: Amplifier; tension: NEEDLE; Power: Over 20W; Input Voltage: 12-32VAC; Input Voltage Type: AC; Model: TDA7294 Mono audio amplifier module with TDA7294 IC, maximum output power 100W (nominal about 85W) on 1 channel, for 4-8 ohm speakers. Power supply 12-32VAC (2x12VAC...2x32VAC, AC-GND-AC from center-tapped transformer), DC not supported. Line-level input 200mV-1Vrms, 100 kOhm input impedance, 20Hz-20kHz frequency range. Screw terminal connections. Requires mounting on a heatsink. ### Display module 8 digits, 7 segments, MAX7219, 3.3-5V - Page: https://sigmanortec.ro/en/display-module-8-digits-7-segments-max7219-33-5v - Details: https://sigmanortec.ro/en/llms/p/1703.md - Price: 10.10 RON - Availability: In stock; 1-2 zile - Reference: 9590 · EAN: 5942755363557 - Specifications: Supply Voltage: 3.3; Maximum Input Voltage: 5; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English.; Model: MAX7219 LED display module with 8 digits and 7 segments, red LEDs, based on the MAX7219 driver (8-bit). Supply voltage 3.3-5VDC, communication via SPI interface. Dimensions 52 x 35 x 12mm. Compatible with Arduino, STM32, AVR/51 and similar development platforms, suitable for displaying numeric values such as temperature, time or counters. ### Audio preamplifier module, XH-A901, NE5532, 12-24VDC - Page: https://sigmanortec.ro/en/audio-preamplifier-module-xh-a901-ne5532-12-24vdc - Details: https://sigmanortec.ro/en/llms/p/1704.md - Price: 33.02 RON - Availability: Out of stock - Reference: R-9591 · EAN: 5944921540885 - Specifications: Type: Preamplifier; tension: AD; Supply Voltage: 12; Maximum Input Voltage: 24; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English.; Model: XH-A901 Stereo audio preamplifier module XH-A901, based on 2 x NE5532 (socketed), for hi-fi systems. Power supply 12-24VDC. Adjustments: Volume, Treble (±15dB), Middle, Bass (±15dB). Frequency response 20Hz-20KHz, signal-to-noise ratio >100dB, distortion ### 4-channel audio amplifier module, 4x3W, XH-A156, 5V - Page: https://sigmanortec.ro/en/4-channel-audio-amplifier-module-4x3w-xh-a156-5v - Details: https://sigmanortec.ro/en/llms/p/1709.md - Price: 13.29 RON - Availability: In stock; 1-2 zile - Reference: 9595 · EAN: 5942111670510 - Specifications: Type: Amplifier; tension: AD; Power: 0 - 20W; Input Voltage: 5 V; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English. XH-A156 audio amplifier module, based on the PAM8403 chip, with 4 channels and an output power of 4x3W. Powered by 5V DC, output impedance 4-8 ohms, signal-to-noise ratio up to 90dB. Features a dual input with two 3-wire ports (2xGND, L, R), usable with two separate audio sources or one 4-channel source. Dimensions: 46 x 29 x 13mm. ### ADS1015 Analog to Digital Converter Module, 12 Bits - Page: https://sigmanortec.ro/en/ads1015-analog-to-digital-converter-module-12-bits - Details: https://sigmanortec.ro/en/llms/p/1690.md - Price: 17.98 RON - Availability: In stock; 1-2 zile - Reference: 8001 · EAN: 5948467905580 ADS1015 Analog to Digital Converter module with 12-bit resolution, programmable sample rate of 8-860 SPS via I2C. Provides 4 single-ended or 2 differential inputs, programmable gain amplifier up to 16X, 2-5VDC supply voltage, 150uA current consumption. I2C address selectable from 4 options (0x48-0x4B). Compatible with Arduino and other development boards for converting analog signals (e.g. potentiometer) into digital signals. ### Audio amplifier module, PAM8403, 3.6-5V, 2x3W - Page: https://sigmanortec.ro/en/audio-amplifier-module-pam8403-36-5v-2x3w - Details: https://sigmanortec.ro/en/llms/p/1696.md - Price: 5.28 RON - Availability: In stock; 1-2 zile - Reference: 9583 · EAN: 5941183755958 - Specifications: Type: Amplifier; tension: AD; Power: 0 - 20W; Supply Voltage: 3.6; Maximum Input Voltage: 5; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English. Digital audio amplifier module based on the PAM8403 chip, supply voltage 3.6-5VDC, delivering stereo power 2x3W (2 channels), output impedance 4 or 8 ohm. Frequency response 20Hz-20kHz, SNR above 90dB, THD below 0.1%, efficiency over 90%. Stereo audio input via pins (no jack socket), suitable for portable audio projects and DIY speakers. Dimensions 15.5 x 24mm. ### Current sensor, Hall, ACS758, linear, 3-5V - Page: https://sigmanortec.ro/en/current-sensor-hall-acs758-linear-3-5v - Details: https://sigmanortec.ro/en/llms/p/1697.md - Price: 39.48 RON - Availability: In stock; 1-2 zile - Reference: 9584 · EAN: 5944987373182 - Specifications: Supply Voltage: 3; Maximum Input Voltage: 5; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English. Linear Hall current sensor module for precise measurement of DC current up to 50A, ideal for power supplies, inverters, motors and power monitoring. Operates at 3-5V, provides analog output proportional to current with Vout at rest VCC/2, sensitivity 40 mV/A and accuracy ±1.5%, with integrated filtering and amplification, compatible with Arduino and other boards. The ACS758LCB-100B-PFF-T CJMCU-758 module, compatible with Arduino and other development boards, is a linear current sensor module, designed to detect and measure the current level in electrical circuits. ### RGB LED strip Driver module, PWM, serial communication 9600bps, 3.3-5V - Page: https://sigmanortec.ro/en/rgb-led-strip-driver-module-pwm-serial-communication-9600bps-33-5v - Details: https://sigmanortec.ro/en/llms/p/1678.md - Price: 33.60 RON - Availability: Out of stock - Reference: R-9565 · EAN: 5947879721429 - Specifications: Supply Voltage: 3.3 VDC; Maximum Input Voltage: 5 VDC; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English. Easily control common cathode RGB LED strips from Arduino or other boards via serial commands at 9600bps. Provides fine dimming on each RGB channel via PWM, operates with 3.3-5V logic and has 3-way MOSFETs for loads up to 12V strips. Screw connectors for LED and power ensure quick and secure installation. Module with integrated microcontroller for controlling RGB LED strips via serial communication, compatible with Arduino and other development boards. This module communicates with the development board via the serial interface at 9600bps and is compatible with logic voltages between 3.3 and 5VDC. ### Temperature and humidity sensor, HTU21D, I2C, 1.5-3.6V - Page: https://sigmanortec.ro/en/temperature-and-humidity-sensor-htu21d-i2c-15-36v - Details: https://sigmanortec.ro/en/llms/p/1682.md - Price: 17.22 RON - Availability: In stock; 1-2 zile - Reference: 9570 · EAN: 5948925466103 - Specifications: Supply Voltage: 1.5; Maximum Input Voltage: 3.6; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English. Precision module for measuring temperature and humidity in Arduino projects and other boards, with fast I2C communication and very low power consumption. It operates at 1.5-3.6V with 3.3V supply, offers 0-100% RH and -40 to 105C measurement, with typical accuracy of ±2% RH and ±1C. It has 4 pins VCC, GND, SDA, SCL and configurable pull-up resistors. Precision sensor for temperature and humidity, HTU21D, compatible with Arduino and other development boards, which communicates with the microcontroller via I2C. ### Amplifier module XH-M253, 420W, Mono, HiFi, TDA8954TH, 12-28V - Page: https://sigmanortec.ro/en/amplifier-module-xh-m253-420w-mono-hifi-tda8954th-12-28v - Details: https://sigmanortec.ro/en/llms/p/1683.md - Price: 333.65 RON - Availability: In stock; 1-2 zile - Reference: 9571 · EAN: 5948761762155 - Specifications: Type: Amplifier; tension: NEEDLE; Power: Over 20W; Supply Voltage: 12; Maximum Input Voltage: 28; Maximum Controlled Power: 420 XH-M253 Class D HiFi amplifier module based on the TDA8954TH IC, with mono output up to 420W. Dual AC power supply 12-28V via a 3-wire transformer, output impedance 2-8 Ohm (4 Ohm recommended). Uses a rectifier bridge with J13003 transistor and 2200uF filter capacitors. Dimensions: 82 x 72 x 37mm. ### Pixhawk Ultrasonic Module, Time of Flight, GY-US42, I2C, TTL, PWM, 3-5V - Page: https://sigmanortec.ro/en/pixhawk-ultrasonic-module-time-of-flight-gy-us42-i2c-ttl-pwm-3-5v - Details: https://sigmanortec.ro/en/llms/p/1684.md - Price: 72.18 RON - Availability: In stock; 1-2 zile - Reference: 9572 · EAN: 5946195117497 - Specifications: Supply Voltage: 3; Maximum Input Voltage: 5; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English. GY-US42 ultrasonic module for Pixhawk, Arduino and other boards, calculates distance using time of flight. Measurement range 20-720 cm, resolution 1 cm, response frequency 15 Hz. Supply voltage 3-5 V, current draw 9 mA. Communication via I2C (default address 0x70), TTL UART (9600-115200bps) or PWM, selectable via jumper. I2C modes: Direct, Pixhawk, APM. ### Multiplexer module, I2C, 8 channels, PCA9548, 3.3-5V - Page: https://sigmanortec.ro/en/multiplexer-module-i2c-8-channels-pca9548-33-5v - Details: https://sigmanortec.ro/en/llms/p/1675.md - Price: 7.44 RON - Availability: In stock; 1-2 zile - Reference: 9564 · EAN: 5945849696951 - Specifications: Supply Voltage: 3.3; Maximum Input Voltage: 5; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English.; Model: PCA9548 I2C multiplexer module with 8 channels based on the PCA9548 chip, allowing up to 8 sensors or modules with the same I2C address to be connected to a single microcontroller. Own address configurable between 0x70-0x77 via pins A0-A2, operates at 2.3-5V, logic level 3.3-5V without a level shifter, I2C frequency up to 400kHz. Compatible with Arduino and other development boards. ### Digital to analog audio converter, coaxial - Page: https://sigmanortec.ro/en/digital-to-analog-audio-converter-coaxial - Details: https://sigmanortec.ro/en/llms/p/1658.md - Price: 35.15 RON - Availability: In stock; 1-2 zile - Reference: 9543 · EAN: 5945497960190 Quickly converts Coaxial or Toslink digital audio signal into L and R stereo analog audio, ideal for connecting your TV or console to an amplifier, active speakers or Hi-Fi system. Supports 24-bit S/PDIF with sampling rates of 32 to 96 kHz, offers stable transmission without electromagnetic noise, has RCA and Toslink connectors, compact format, 5V power supply. Digital audio to analog audio converter module used to convert from Coaxial or Toslink audio signal to Analog L/R audio signal. It supports sampling rates of 32, 44.1, 48 and 96KHz, 24-bit S/PDIF on the Left and Right channels. The transmission is free of electromagnetic noise and is simple to install and use. Specifications … ### Amplifier module with 18650, PAM8403, 2x5W output, Bluetooth, Stereo, SD Card - Page: https://sigmanortec.ro/en/amplifier-module-with-18650-pam8403-2x5w-output-bluetooth-stereo-sd-card - Details: https://sigmanortec.ro/en/llms/p/1648.md - Price: 31.36 RON - Availability: In stock; 1-2 zile - Reference: 9533 · EAN: 5944558026233 - Specifications: Type: Amplifier; tension: AD; Power: 0 - 20W; Model: PAM8403 Compact solution for audio playback and stereo amplification, offers 2x5W at 4 ohms with PAM8403 class D, plays music via Bluetooth, USB or MicroSD card, is powered at 5V via MicroUSB or from a 18650 battery in a dedicated slot, includes charge management and status LEDs. Audio playback module with PAM8403 amplifier with 2 channels of 5W each, stereo output 2.0, Stereo D, MicroSD and USB card support. The module can be powered through the MicroUSB plug or from the 18650 battery inserted in the dedicated slot. ### AC voltage sensor module with transformer, ZMPT101B 2MA, adjustable amplitude - Page: https://sigmanortec.ro/en/ac-voltage-sensor-module-with-transformer-zmpt101b-2ma-adjustable-amplitude - Details: https://sigmanortec.ro/en/llms/p/1649.md - Price: 13.50 RON - Availability: In stock; 1-2 zile - Reference: 9534 · EAN: 5947086717833 - Specifications: tension: NEEDLE; Input Voltage Type: AC; Model: ZMPT101B AC voltage sensor module ZMPT101B with transformer and precision amplifier, for monitoring one phase in Arduino projects or other 5V boards with an ADC pin. Measures 0-250VAC and outputs an analog signal of 0-5VDC. Input/output current 2mA, galvanic isolation, potentiometer for calibration, power supply 5-30VADC. ### GSM relay module, gate opener, G202 Plus, 9-24V, 4G - Page: https://sigmanortec.ro/en/gsm-relay-module-gate-opener-g202-plus-9-24v-4g - Details: https://sigmanortec.ro/en/llms/p/1650.md - Price: 380.29 RON - Availability: In stock; 1-2 zile - Reference: 88188 · EAN: 5940273386232 - Specifications: Supply Voltage: 9; Maximum Input Voltage: 24; Output Type Voltage: Closed-Open Contact; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English.; Model: G202 Plus GSM relay module for opening gates and remote control of equipment, activated by free call or SMS, works on the 4G network and is easily configured with SMS commands, allows authorization of up to 999 users for secure access, has relay with COM NC NO contacts, removable external antenna and DIN rail mounting. Relay module with remote control via GSM that can be used to open gates, doors or to remotely control any kind of device or equipment. The module is the 4G version , different from the standard version that only supports the 2G network. The relay is activated by direct call to the card installed in the module or by SMS message. ### 30-second recording board with playback, button trigger, for DIY greeting cards - Page: https://sigmanortec.ro/en/30-second-recording-board-with-playback-button-trigger-for-diy-greeting-cards - Details: https://sigmanortec.ro/en/llms/p/1653.md - Price: 23.20 RON - Availability: Out of stock - Reference: 9538 · EAN: 5948972978918 Audio module for DIY greeting cards (ref. 9538), allows recording and playback of messages up to 30 seconds. Includes microphone and integrated speaker (0.5W, 16 Ohm), powered by button cell batteries (not included). Factory set with 2-button trigger (record/play), modifiable for external button or photoresistor trigger (not included). Continuous recording. Board dimensions: 50 x 40mm, speaker: 30mm diameter. ### LCD Display 7", 800x480, IPS, TFT, Capacitive Touchscreen, SDWb070T84C, TTL, RS232, 6-35V - Page: https://sigmanortec.ro/en/lcd-display-7-800x480-ips-tft-capacitive-touchscreen-sdwb070t84c-ttl-rs232-6-35v - Details: https://sigmanortec.ro/en/llms/p/1643.md - Price: 384.61 RON - Availability: Out of stock - Reference: R-9528 · EAN: 5945838808112 - Specifications: Supply Voltage: 6 VDC; Maximum Input Voltage: 35 VDC; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English.; Model: SDWb070T84C 7 inch IPS LCD display with 800x480 resolution and capacitive touchscreen, ideal for HMI interfaces in industrial projects and electronic equipment. It plays content directly and allows for rapid GUI development with the VT9560 processor, communicates easily via TTL or RS232 with microcontrollers, operates at 6-35V and supports 90, 180 or 270 degree rotation in software. Display module model SDWb070T84C, resolution 800x480 pixels, 7 inch TFT LCD IPS, 64k colors, with capacitive touch screen and serial communication on TTL and RS232. This display has a VT9560 processor that allows direct playback of content and the development of graphic interfaces with the help of dedicated software. ### E-Switch mosfet module, 3-12V control, 5-36V output, with optoisolator - Page: https://sigmanortec.ro/en/e-switch-mosfet-module-3-12v-control-5-36v-output-with-optoisolator - Details: https://sigmanortec.ro/en/llms/p/1628.md - Price: 20.58 RON - Availability: In stock; 1-2 zile - Reference: 9513 · EAN: 5940572857129 - Specifications: Supply Voltage: 3; Maximum Input Voltage: 12; Minimum Output Voltage: 5; Maximum Output Voltage: 36; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English.; Output Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English. E-Switch MOSFET module with optoisolator for PWM control of LED strips, DC motors and other loads via Arduino or other microcontrollers. Control voltage 3-12VDC, output voltage 5-36VDC, maximum current 5A standard, 22A with active cooling. 2.54mm pins compatible with DuPont connectors. Dimensions 42 x 26mm. Reference 9513. ### E-Paper Screen, E-Ink, 2.13", SPI, 3.3-5V, Black - Page: https://sigmanortec.ro/en/e-paper-screen-e-ink-213-spi-33-5v-black - Details: https://sigmanortec.ro/en/llms/p/1632.md - Price: 127.98 RON - Availability: In stock; 1-2 zile - Reference: 9517 · EAN: 5943938035179 - Specifications: Supply Voltage: 3.3 V; Maximum Input Voltage: 5 V; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English. 2.13 inch E-Ink display for Arduino, STM32, Raspberry Pi and other board projects, ideal for paper-like display with very low consumption. 296x128 resolution for clear text and icons, good visibility in bright light with 170 degree viewing angle, SPI interface for quick connection, image remains displayed even without power. E-INK display compatible with Arduino, STM32, Raspberry and other development boards. This screen does not require backlighting and is the closest display to imitating printed paper. It offers a resolution of 296*128 pixels, a viewing angle of 170 degrees and a connection interface through SPI. In order to be read, it requires ambient lighting. ### FM transmitter module, SI4713, I2C, 3-5VDC - Page: https://sigmanortec.ro/en/fm-transmitter-module-si4713-i2c-3-5vdc - Details: https://sigmanortec.ro/en/llms/p/1633.md - Price: 56.04 RON - Availability: In stock; 1-2 zile - Reference: 9518 · EAN: 5945284132052 - Specifications: Supply Voltage: 3 V; Maximum Input Voltage: 5 V; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English. FM transmitter module based on Si4713, controlled via I2C interface, 3-5VDC power supply. Compatible with Arduino, ESP32 and other development boards. Allows stereo audio transmission via 3.5mm AUX input and RDS data (song title, text messages). Typical range up to 10 meters, extendable with an antenna. Operating temperature -25 to 85 degrees C, dimensions 40 x 20 x 7mm. ### Precision Real Time Clock Module, RTC, DS3231, with battery, 3.3-5V - Page: https://sigmanortec.ro/en/precision-real-time-clock-module-rtc-ds3231-with-battery-33-5v - Details: https://sigmanortec.ro/en/llms/p/1634.md - Price: 22.31 RON - Availability: In stock; 1-2 zile - Reference: 9519 · EAN: 5944602545260 - Specifications: Supply Voltage: 3.3 V; Maximum Input Voltage: 5 V; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English. Precision RTC module DS3231, with backup battery, operates at 3.3-5V and communicates via I2C (400kHz speed). Provides a full calendar up to 2100, accuracy of ±5ppm, two programmable alarms, and 1Hz and 32.768KHz outputs. Operating temperature: -40 to +85°C. Dimensions: 13.7 x 13.5mm. Compatible with Arduino and other development boards. ### MAX4466 microphone module, with amplification, adjustable gain, 2.3-5VDC - Page: https://sigmanortec.ro/en/max4466-microphone-module-with-amplification-adjustable-gain-23-5vdc - Details: https://sigmanortec.ro/en/llms/p/1635.md - Price: 8.69 RON - Availability: In stock; 1-2 zile - Reference: 9520 · EAN: 5945422799697 - Specifications: Supply Voltage: 2.3 V; Maximum Input Voltage: 5 V; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English. Electret microphone module with MAX4466 amplifier, compatible with Arduino and other development boards. Supply voltage 2.4-5VDC (best performance at 3.3V), direct analog output to ADC. Gain adjustable via onboard potentiometer, from 25X to 125X, signal 200mVpp-5Vpp. Good rejection of power supply noise, suitable for FFT, voice changer and audio-reactive projects. ### Display TFT 0.96", IPS, SPI, 65K colors, LCD ST7735, 80x160, 8P - Page: https://sigmanortec.ro/en/display-tft-096-ips-spi-65k-colors-lcd-st7735-80x160-8p - Details: https://sigmanortec.ro/en/llms/p/1636.md - Price: 22.42 RON - Availability: In stock; 1-2 zile - Reference: 9521 · EAN: 5948521013701 IPS color display module, 0.96 inch, 80x160 RGB pixel resolution, ST7735S controller, SPI communication, 8 pins. Power and logic voltage 3.3V (not compatible with 5V, requires logic level converter). Backlight controllable via BLK pin. Wide viewing angles due to IPS panel. Operating temperature: -20 - +70 degrees C, non-condensing. Dimensions: 30 x 24mm. ### Display TFT 1.3", IPS, SPI, 65K colors, LCD ST7789V, 240x240, 7P - Page: https://sigmanortec.ro/en/display-tft-13-ips-spi-65k-colors-lcd-st7789v-240x240-7p - Details: https://sigmanortec.ro/en/llms/p/1637.md - Price: 30.64 RON - Availability: In stock; 1-2 zile - Reference: 9522 · EAN: 5945251522923 TFT IPS display module, 1.3 inch, ST7789V driver, 240x240 pixel resolution, 65K colors, SPI communication, 7 pins. Power and logic at 3.3VDC (NOT 5V compatible, requires logic level converter). BLK pin for backlight control. Dimensions 39 x 28mm, operating temperature -20 to +70 degrees C. Compatible with Arduino and other development boards such as ESP32. ### LED Matrix Module, 4x, MAX7219, Red - Page: https://sigmanortec.ro/en/led-matrix-module-4x-max7219-red - Details: https://sigmanortec.ro/en/llms/p/1618.md - Price: 27.21 RON - Availability: In stock; 1-2 zile - Reference: 22211 · EAN: 5948188956939 - Specifications: Model: MAX7219 Red LED dot matrix display with 4 8x8 panels, controlled by MAX7219, ideal for messages, graphic effects and microcontroller projects. It connects easily with only 3 data lines, is compatible with Arduino and similar boards, operates at 5V and offers 256 LEDs for good visibility. Compact size 128 x 32 x 13 mm. The module composed of 4 8x8 type LED matrices that uses the integrated MAX7219, compatible with Arduino and other development boards. This matrix is composed of four individual 8x8 modules, each integrating a MAX7219 driver. They are interconnected and can be used together with only 3 data lines. Always check the correct mounting of the individual displays. ### XH-M609 module, low voltage disconnect, 7-50V - Page: https://sigmanortec.ro/en/xh-m609-module-low-voltage-disconnect-7-50v - Details: https://sigmanortec.ro/en/llms/p/1623.md - Price: 14.22 RON - Availability: In stock; 1-2 zile - Reference: 9510 · EAN: 5946537077922 - Specifications: Supply Voltage: 7; Maximum Input Voltage: 50; Output Type Voltage: Closed-Open Contact; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English. XH-M609 module for automatic disconnection of the load at low voltage, operates between 7 and 50VDC (supply voltage 6-50VDC). Disconnect and reconnect thresholds are adjustable in 0.1V steps, display shows real-time voltage, status LED, 20A relay rated at 14VDC / 20A at 125VAC. Standby consumption 0.2-0.5W, operating consumption 1-2W. Dimensions 57 x 42 x 19mm. ### Lithium charge protection module, 6-60V, 30A, Display, serial communication, XY-L30A - Page: https://sigmanortec.ro/en/lithium-charge-protection-module-6-60v-30a-display-serial-communication-xy-l30a - Details: https://sigmanortec.ro/en/llms/p/1626.md - Price: 34.69 RON - Availability: In stock; 1-2 zile - Reference: 9511 · EAN: 5940355943858 - Specifications: Technology: Lithium Ion; Maximum Input Voltage: 60; Maximum Output Current: 30 A; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English. XY-L30A module for protection and automatic control of battery charging with an input voltage of 6-60V, via a 30A relay with optocoupler. Allows manual setting of HIGH and LOW thresholds to start/stop charging, limiting of maximum charging time, and displays voltage, time and battery percentage on a display. Offers UART serial communication 9600,8,1 for monitoring and integration. ### Battery charge-discharge control module, 6-60V, 30A, CD63L30A - Page: https://sigmanortec.ro/en/battery-charge-discharge-control-module-6-60v-30a-cd63l30a - Details: https://sigmanortec.ro/en/llms/p/1627.md - Price: 89.58 RON - Availability: In stock; 1-2 zile - Reference: 9512 · EAN: 5942769616267 - Specifications: Maximum Input Voltage: 60; Maximum Output Current: 30 A; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English. CD63L30A module for battery charge-discharge control, input voltage 6-60V, maximum output current 30A. Uses a relay with optocoupler, works with either a charger or a load, with adjustable HIGH/LOW voltage thresholds and an optional timer for charging time. The display shows voltage, time and battery percentage, with no voltage conversion. ### SIM800C module, GSM, GPRS, Quad-Band, Bluetooth BLE, with antenna - Page: https://sigmanortec.ro/en/sim800c-module-gsm-gprs-quad-band-bluetooth-ble-with-antenna - Details: https://sigmanortec.ro/en/llms/p/1587.md - Price: 70.97 RON - Availability: In stock; 1-2 zile - Reference: 9480 · EAN: 5949149653539 SIM800C Quad-Band GSM/GPRS module, compatible with Arduino, for data, voice and SMS on 850/900/1800/1900MHz. Includes Bluetooth BLE 3.0, audio interface with microphone, TTS/DTMS support, Serial SPP and a port for a 3.7V Li-Ion battery. Power supply 5-18VDC (max 20VCC). Antenna included, SMA plus IPEX connector. ### Bluetooth module HC-05, original - Page: https://sigmanortec.ro/en/bluetooth-module-hc-05-original - Details: https://sigmanortec.ro/en/llms/p/1589.md - Price: 50.82 RON - Availability: In stock; 1-2 zile - Reference: 9482 · EAN: 5945690412205 Original HC-05 Bluetooth module for wireless serial communication with Arduino and other development boards. Operates in Master or Slave mode, USART TTL communication, configurable via AT Command Mode. Default baud rate 9600 bps, supply voltage 3.6-6V, RX pin logic voltage 3.3VDC, current consumption 30mA. Uses the original HC-05 chip, firmware 4.0-20190728, IEEE 802.15.1, FHSS. ### Barcode and QR scanner module, GM65, optical - Page: https://sigmanortec.ro/en/barcode-and-qr-scanner-module-gm65-optical - Details: https://sigmanortec.ro/en/llms/p/1579.md - Price: 260.50 RON - Availability: In stock; 1-2 zile - Reference: 9472 · EAN: 5947653679342 Optical module for fast and accurate scanning of 2D codes, barcodes and QR codes, ideal for Arduino projects and automation. Reads omnidirectionally, including codes on curved surfaces, works continuously or at the press of a button. Connects via USB or UART and can add prefix or suffix, the white LED illuminates the code and the buzzer confirms the reading. Quality module for scanning and identifying 2D images, barcodes and QR codes. It is compatible with Arduino and other development boards. Regardless of the type of code scanned, the sensor can scan omnidirectionally and allows scanning even codes folded on round objects. ### Audio amplifier module, 420Wx2, HX-M252, TDA8954TH, 24VAC, Stereo HiFi, Class D - Page: https://sigmanortec.ro/en/audio-amplifier-module-420wx2-hx-m252-tda8954th-24vac-stereo-hifi-class-d - Details: https://sigmanortec.ro/en/llms/p/1548.md - Price: 306.88 RON - Availability: In stock; 1-2 zile - Reference: R-9438 · EAN: 5948107883995 - Specifications: Type: Amplifier; tension: NEEDLE; Power: Over 20W; Input Voltage: 24 VAC; Input Voltage Type: AC; Model: HX-M252 HiFi class D stereo amplifier module for power audio projects, offers 2x420W on two channels with TDA8954TH and works with 2-8 Ohm speakers. It is powered by dual AC 24-30V, has a generous radiator for efficient dissipation and screw terminals for quick connection. Recommended with preamplifier for volume and tone control. Class D amplifier module, XH-M252 with TDA8954TH, two channels of 420W each, which supports speakers with impedance between 2 and 8 ohms. It is recommended to use a 24VAC double loop power supply and a 300W or larger ring transformer. ### Relay module with remote control, 1 channel, 433MHz, 12VDC - Page: https://sigmanortec.ro/en/relay-module-with-remote-control-1-channel-433mhz-12vdc - Details: https://sigmanortec.ro/en/llms/p/1550.md - Price: 51.46 RON - Availability: In stock; 1-2 zile - Reference: 9453 · EAN: 5949279076253 - Specifications: tension: AD; Output Type Voltage: Closed-Open Contact; Input Voltage: 12 VDC; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English. Quickly control electrical consumers remotely with a 1-channel 433MHz relay, powered at 12VDC and delivered in a compact box. It offers ON OFF or momentary control, plus delayed mode, via a remote control with two buttons A and B. The relay contacts support up to 10A at 250VAC, the working range can reach 50 m in ideal conditions. The module with a 12VDC remote control relay and a remote control, which operates at a frequency of 433MHz. It is accompanied by a plastic box and the remote control has two buttons, A and B. The two buttons can be used to activate/deactivate the relay. The remote control requires two CR2016 batteries to operate (not included). ### Audio module Bluetooth 5.0, BLE, VHM-314, Stereo, MP3 - Page: https://sigmanortec.ro/en/audio-module-bluetooth-50-ble-vhm-314-stereo-mp3 - Details: https://sigmanortec.ro/en/llms/p/1535.md - Price: 11.39 RON - Availability: In stock; 1-2 zile - Reference: 9425 · EAN: 5948483264104 Bluetooth 5.0 audio module for stereo MP3 playback, ideal for DIY projects and integration into speakers or car systems. Offers AUX output on 3.5 mm jack with 2 channels L and R, stable connection up to 15 m and blue LED indicator for status. Works directly with 3.7 V lithium battery and includes charging circuit, flexible power supply to 5 V including via Type C plug. Bluetooth audio module, version 5.0, VHM-314, 2-channel output, equipped with 3.5mm jack for AUX output. It has a blue status indicator and can be used directly with a 3.7V lithium battery, the module having a lithium charging circuit. Power can be supplied from 5V, from the battery or via the Type C connector. ### Temperature sensor LM35 original, TO92, TI - Page: https://sigmanortec.ro/en/temperature-sensor-lm35-original-to92-ti - Details: https://sigmanortec.ro/en/llms/p/1522.md - Price: 7.38 RON - Availability: In stock; 1-2 zile - Reference: 9415 · EAN: 5943268728895 LM35 temperature sensor, original Texas Instruments, in TO-92 package with 3 pins. Provides an analog signal of 10mV/°C, supply voltage 4-20VDC, output voltage 6V, output current 10mA. Accuracy of 1°C, or 0.5°C at 25°C. Typical measuring range 0-100°C, expandable for negative values. Compatible with Arduino and other development boards. ### XH-M164 Preamplifier Module, NE5532, HiFi, Volume and Tones, 9-18VAC - Page: https://sigmanortec.ro/en/xh-m164-preamplifier-module-ne5532-hifi-volume-and-tones-9-18vac - Details: https://sigmanortec.ro/en/llms/p/1528.md - Price: 39.75 RON - Availability: Out of stock - Reference: R-9421 · EAN: 5942831232302 - Specifications: Type: Preamplifier; tension: NEEDLE; Input Voltage: 9-18 VAC; Input Voltage Type: AC XH-M164 HiFi stereo preamplifier module with NE5532 chip. Requires dual AC power supply 9-18VAC (recommended 12VAC), power consumption 5W. Features 2 output channels, full sound control (volume, bass, mid, treble), audio input via Lotus socket and output via XH2.54mm 3P connector. Mounting holes M3, hole spacing 93 x 53mm, module dimensions 100 x 60mm. ### 50Kg load cell, half-bridge structure - Page: https://sigmanortec.ro/en/50kg-load-cell-half-bridge-structure - Details: https://sigmanortec.ro/en/llms/p/1499.md - Price: 5.89 RON - Availability: In stock; 1-2 zile - Reference: 9392 · EAN: 5942540576445 Half-bridge load cell with a capacity of 50Kg, internal resistance 1000 Ohm, operating voltage 3-5VDC, dimensions 34x34mm. Compatible with Arduino and other development boards. Multiple sensors can be connected in parallel to increase capacity; for a setup with 4 sensors, diagonal parallel connection together with an HX711 module is recommended. Ref: 9392. ### Wired antenna connector, AP, SMA Female to IPX, 15cm, 0-3GHz - Page: https://sigmanortec.ro/en/wired-antenna-connector-ap-sma-female-to-ipx-15cm-0-3ghz - Details: https://sigmanortec.ro/en/llms/p/1503.md - Price: 7.83 RON - Availability: In stock; 1-2 zile - Reference: 9396 · EAN: 5947469563156 Wired antenna extension, 15cm length, with SMA Female to U.FL IPX, IPEX1, RF1.13 connector. Connector marking IPX 13, MHF4 standard, connector diameter 1.5mm, height 1mm. Operating frequency 0-3GHz. Can be used to extend an Access Point (AP) to an external antenna. ### Addressable ring module, RGB, WS2812, LED 5050, with driver - Page: https://sigmanortec.ro/en/addressable-ring-module-rgb-ws2812-led-5050-with-driver - Details: https://sigmanortec.ro/en/llms/p/1490.md - Price: 29.96 RON - Availability: In stock; 1-2 zile - Reference: 9384 · EAN: 5941606277302 Addressable RGB LED ring with 61 WS2812B 5050 LEDs, compatible with Arduino and other development boards. Controlled via a single data wire, allows cascade connection and requires no resistor. Power supply 5VDC, outer diameter 90mm, ring thickness 7mm, distance between rings 3mm. ### LED traffic light module, 56mm, 3.3-5V - Page: https://sigmanortec.ro/en/led-traffic-light-module-56mm-33-5v - Details: https://sigmanortec.ro/en/llms/p/1491.md - Price: 2.83 RON - Availability: In stock; 1-2 zile - Reference: 9385 · EAN: 5940025485053 LED traffic light module, 56mm, with 3.3-5VDC supply voltage, includes three 5mm LEDs: red, yellow and green, with integrated resistors and common cathode interface. Has digital input and mounts directly on a breadboard, compatible with Arduino and other development boards. Dimensions: 56 x 21 x 11mm. Reference 9385. ### Ultrasonic sensor module, JSN-SR04T, v3.3, waterproof, 3-5V - Page: https://sigmanortec.ro/en/ultrasonic-sensor-module-jsn-sr04t-v33-waterproof-3-5v - Details: https://sigmanortec.ro/en/llms/p/1487.md - Price: 56.07 RON - Availability: In stock; 1-2 zile - Reference: 9381 · EAN: 5946649856880 - Specifications: Supply Voltage: 3; Maximum Input Voltage: 5; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English. Ultrasonic sensor module JSN-SR04T v3.3, waterproof, for contactless distance measurement, DC 3.0-5.5V supply, current ### Low voltage control module, panel, battery discharge protection, 12-48V, 20A - Page: https://sigmanortec.ro/en/low-voltage-control-module-panel-battery-discharge-protection-12-48v-20a - Details: https://sigmanortec.ro/en/llms/p/1458.md - Price: 68.18 RON - Availability: In stock; 1-2 zile - Reference: 9352 · EAN: 5940669690837 - Specifications: Supply Voltage: 12; Maximum Input Voltage: 48; Maximum Output Current: 20; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English. Battery protection panel module, automatically disconnects power when voltage drops below the set threshold and reconnects the consumer at the chosen restart voltage. Compatible with 12-48V, controls loads up to 20A, digital display for monitoring and settings, LED for indicating low voltage status, simple two-button adjustment. Panel module for power interruption in case of low voltage, settable. Its use is indicated to prevent discharge below a certain battery voltage. When the voltage returns to a preset value, the consumer's supply is resumed. It has an indicator LED for the low voltage state and a display for monitoring the voltage and setting the parameters. Specifications … ### 16-channel relay with remote control, 12V, 433MHz - Page: https://sigmanortec.ro/en/16-channel-relay-with-remote-control-12v-433mhz - Details: https://sigmanortec.ro/en/llms/p/1462.md - Price: 213.31 RON - Availability: In stock; 1-2 zile - Reference: 9356 · EAN: 5946452719709 - Specifications: Output Type Voltage: Closed-Open Contact; Input Voltage: 12 V; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English. 16-channel relay with 433MHz wireless remote control, quick pairing via the learn function. Input voltage 12V DC, output type open/closed contact, maximum load 7A per channel. Supports 3 operating modes: jog, latched and toggle. The remote uses a type 23A battery (not included). Ref. 9356. ### Photoelectric reflector panel, TD-08 - Page: https://sigmanortec.ro/en/photoelectric-reflector-panel-td-08 - Details: https://sigmanortec.ro/en/llms/p/1447.md - Price: 7.80 RON - Availability: In stock; 1-2 zile - Reference: 9340 · EAN: 5946691534170 Photoelectric reflector panel TD-08, used together with photoelectric sensors for stable detection and easy alignment in industrial applications. Reflective surface of 50 x 50 mm, overall dimensions 60 x 50 mm. Simple construction, suitable for automation, gates, conveyor belts and production equipment. ### HiFi audio isolator module, 3.5mm jack - Page: https://sigmanortec.ro/en/hifi-audio-isolator-module-35mm-jack - Details: https://sigmanortec.ro/en/llms/p/1440.md - Price: 25.03 RON - Availability: In stock; 1-2 zile - Reference: 9334 · EAN: 5946803060498 HiFi audio isolator module (ref. 9334, EAN 5946803060498) with AUX 3.5mm jacks at input and output, eliminates hum and noise caused by common ground between audio source and amplifier, speakers or car audio. Effectively isolates GND to reduce distortion, compact 45 x 30mm format, suitable for PC, TV, DAC or car audio systems. ### HiFi audio isolator module, pin terminal - Page: https://sigmanortec.ro/en/hifi-audio-isolator-module-pin-terminal - Details: https://sigmanortec.ro/en/llms/p/1441.md - Price: 24.91 RON - Availability: In stock; 1-2 zile - Reference: 9335 · EAN: 5944466565756 HiFi audio isolator module with 3-pin terminal (ref. 9335, EAN 5944466565756). Reduces noise and hum caused by ground loops when connecting an audio source to an amplifier, player or active speakers, providing GND isolation for the HiFi signal. Compact 45 x 30 mm format, suitable for automotive, home audio and DIY projects. ### 4-channel remote control, 433MHz - Page: https://sigmanortec.ro/en/4-channel-remote-control-433mhz - Details: https://sigmanortec.ro/en/llms/p/1444.md - Price: 19.19 RON - Availability: In stock; 1-2 zile - Reference: 9338 · EAN: 5945060471306 4-channel remote control, transmitter operating at 433MHz with ASK modulation, for remote control of compatible relays and automation systems. Transmission power +13dBm, control range up to 50 meters under ideal conditions. ABS housing, powered at 12VDC with a 23A battery, not included. Button order may differ from other similar remote controls. ### Radio control module, 4CH, receiver with transmitter, 40MHz - Page: https://sigmanortec.ro/en/radio-control-module-4ch-receiver-with-transmitter-40mhz - Details: https://sigmanortec.ro/en/llms/p/1431.md - Price: 22.66 RON - Availability: In stock; 1-2 zile - Reference: 9325 · EAN: 5945383477504 40MHz 4-channel transmitter receiver pair, ideal for DIY remote control projects, allows control of two motors in both directions for forward, reverse and direction. It operates at 3-4.5V on the transmitter and 4.5-6V on the receiver, has a range of up to 10 m, offers simple connections for 130 type motors and includes antennas for stable transmission. Pair of 40MHz transmitter-receiver frequency, with 4 channels, which allows the control of 2 motors in both directions. This allows, for example, the creation of a remote control car in which one motor is responsible for forward/backward movement and the second can be used to control the direction. Careful! ### Bluetooth 5.0, 2.1, TPA3116 amplifier, 2x50W, 1x100W - Page: https://sigmanortec.ro/en/bluetooth-50-21-tpa3116-amplifier-2x50w-1x100w - Details: https://sigmanortec.ro/en/llms/p/1421.md - Price: 195.35 RON - Availability: In stock; 1-2 zile - Reference: 9315 · EAN: 5940214533299 - Specifications: Type: Amplifier; tension: AD; Power: Over 20W 2.1 amplifier with Bluetooth 5.0 and AUX input, ideal for stereo speakers and subwoofer in compact audio projects. Delivers 2x50W for left and right channels and 1x100W for bass, operates at 12-24VDC, includes short-circuit, overcurrent and overheating protections, and copper terminals ensure safe contact and high current. 3-channel amplifier (2.1) with Bluetooth 5.0 and AUX-IN. This amplifier offers two 50W channels and a 100W Subwoofer channel. It offers protection against short circuiting, reverse connection and excessive temperature. The connectors and terminals are made of copper to avoid their overheating and to be able to withstand a higher current. Specifications: Model: Zk-MT21 … ### Weight reading module, HX711, 24AD, 2 channels, 3-5V - Page: https://sigmanortec.ro/en/weight-reading-module-hx711-24ad-2-channels-3-5v - Details: https://sigmanortec.ro/en/llms/p/1408.md - Price: 4.57 RON - Availability: In stock; 1-2 zile - Reference: 9302 · EAN: 5948285571165 - Specifications: tension: AD; Supply Voltage: 3; Maximum Input Voltage: 5 HX711 module for reading load cells, with a 24-bit ADC and 2 channels. Allows connection of up to two load cells, communicating over a two-wire protocol (SCK and DT). Supply voltage 2.7-5.5VDC, current consumption approximately 10mA, dimensions 37x21mm. Compatible with Arduino and other development boards, suitable for DIY scales and automation projects. ### Bluetooth 4.1 BLE Audio Module, Stereo, Aux-In, Type-C - Page: https://sigmanortec.ro/en/bluetooth-41-ble-audio-module-stereo-aux-in-type-c - Details: https://sigmanortec.ro/en/llms/p/1409.md - Price: 11.75 RON - Availability: In stock; 1-2 zile - Reference: 9303 · EAN: 5943788222149 Bluetooth 4.1 BLE audio receiver module with stereo two-channel output via AUX-IN or LGR. Supports A2DP, AVCTP, AVTDP, AVRCP and HFP. Powered at 5VDC via Type-C or 3.7V Li-ion battery. Dimensions: 30 x 32 x 7.5mm. Can be used to add Bluetooth functionality to any audio playback device with AUX-IN. ### Atmospheric pressure and temperature sensor, MS5611, GY-63, IIC, SPI, 3.3-5V - Page: https://sigmanortec.ro/en/atmospheric-pressure-and-temperature-sensor-ms5611-gy-63-iic-spi-33-5v - Details: https://sigmanortec.ro/en/llms/p/1401.md - Price: 56.02 RON - Availability: In stock; 1-2 zile - Reference: 9295 · EAN: 5949725609530 - Specifications: Input Voltage: 3.3 - 5 V; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English. Barometric module GY-63 with MS5611 sensor for measuring atmospheric pressure and temperature. Supply voltage 3.3-5V DC, 24-bit ADC, communication via IIC/I2C or SPI. Pressure range 10-1200 mBar (resolution 0.012 mbar, accuracy ±1.5 mbar at 25°C), temperature -40-85°C (resolution 0.01°C, accuracy ±0.8°C). Altitude resolution up to 10cm. Dimensions 19 x 13mm. ### Thermocouple module type K, MAX6675, 1024 degrees - Page: https://sigmanortec.ro/en/thermocouple-module-type-k-max6675-1024-degrees - Details: https://sigmanortec.ro/en/llms/p/1380.md - Price: 32.26 RON - Availability: In stock; 1-2 zile - Reference: 9274 · EAN: 5944714334943 Type K thermocouple temperature reading module, ideal for Arduino projects and industrial automation. Offers measurement up to 1024°C with 0.25°C resolution, SPI communication and stable digital output, includes cold junction compensation and broken thermocouple detection. Operates at 3-5.5V and comes with probe included. MAX 6675 digital thermocouple module with probe, compatible with Arduino and other development boards. It comes with a type K (Nickel-Chrome/Nickel–Aluminum) probe. The module communicates with development boards via the SPI interface to read the temperature, with a 12-bit resolution. ### ADXL345 accelerometer module, I2C/SPI, 3.3-5V - Page: https://sigmanortec.ro/en/adxl345-accelerometer-module-i2c-spi-33-5v - Details: https://sigmanortec.ro/en/llms/p/1365.md - Price: 26.55 RON - Availability: In stock; 1-2 zile - Reference: 9252 · EAN: 5944357559642 - Specifications: Input Voltage: 3.3 - 5 V; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English. Module with ADXL345 sensor for measuring acceleration, tilt and angle on 3 axes, compatible with Arduino and other development boards. Communicates via I2C (default setting) or SPI (requires removing resistor R4). Supply voltage 3.3-5VDC, with RT9161 regulator for stable operation. Dimensions 28 x 14 mm. Supports free-fall detection, tap, orientation, pitch/roll and FIFO modes. ### Electromyogram Sensor Module, EMG, electrodes H124SG - Page: https://sigmanortec.ro/en/electromyogram-sensor-module-emg-electrodes-h124sg - Details: https://sigmanortec.ro/en/llms/p/1370.md - Price: 83.82 RON - Availability: In stock; 1-2 zile - Reference: R-9257 · EAN: 5945025479347 Kit for measuring electrical muscle activity, useful in biofeedback projects and EMG analysis with Arduino or other development boards. Includes the module and 3 self-adhesive gel pads and wires, offers 0V to Vs analog output for easy reading, mounts quickly on the breadboard, works with dual power supply between plus minus 3.5 and plus minus 9VDC. The EMG sensor module is a product designed to measure the electrical activity of muscles through surface electromyography (sEMG). Based on the TL084 quad operational amplifier with JFET input, the module offers a very high input impedance, low noise, and a slew rate of 16 V/µs, ensuring faithful acquisition of the muscle signal. ### ESP32-CAM development board with CH340G, WiFi, Bluetooth, OV5640 5MP - Page: https://sigmanortec.ro/en/esp32-cam-development-board-with-ch340g-wifi-bluetooth-ov3660-3mp - Details: https://sigmanortec.ro/en/llms/p/1371.md - Price: 91.61 RON - Availability: In stock; 1-2 zile - Reference: 9264 · EAN: 5947047985967 Compact solution for artificial vision projects, video streaming and IoT, with an ESP32 dual-core processor up to 240MHz, WiFi 802.11 b g n and Bluetooth 4.2 LE connectivity for wireless control and transmission, a 5MP OV5640 camera for detailed images, 4MB PSRAM memory for efficient capture and processing, easy programming in Arduino IDE via CH340G with USB Type C. The ESP32-CAM development board combines an ESP32 module with a dual-core processor and a 5 MP OV5640 camera, offering WiFi and Bluetooth connectivity in a compact form factor. ### Color OLED display, 1.5 inch, RGB, SSD1351 - Page: https://sigmanortec.ro/en/color-oled-display-15-inch-rgb-ssd1351 - Details: https://sigmanortec.ro/en/llms/p/1355.md - Price: 199.32 RON - Availability: In stock; 1-2 zile - Reference: 9242 · EAN: 5941829556512 1.5 inch color OLED display without backlight, using the SSD1351 driver and a 7-pin SPI interface. Resolution 128x128 pixels, RGB, 262k colors. Supply and operating voltage 3.3-5VDC, compatible with Arduino, Raspberry Pi, STM32 and other development boards. Display size 40x35mm, active screen area 26.85x26.85mm, pixel size 0.07x0.21mm. Pins: GND, VCC, SCL, SDA, RES, DC, CS. ### LCD1602 module, shield, with buttons, blue - Page: https://sigmanortec.ro/en/lcd1602-module-shield-with-buttons-blue - Details: https://sigmanortec.ro/en/llms/p/1356.md - Price: 21.91 RON - Availability: In stock; 1-2 zile - Reference: 9243 · EAN: 5944561530505 LCD1602 shield, directly compatible with Arduino UNO and MEGA, with 6 integrated buttons, ideal for menus and quick interfaces. Displays 16x2 white characters, features adjustable blue backlight and contrast adjustable via potentiometer. Powered by 5VDC directly from the board, parallel HD44780 interface, LiquidCrystal library. Dimensions: 80 x 59 mm. ### LCD display Nokia 5110, 1.6 inch, Blue, 3.3V - Page: https://sigmanortec.ro/en/lcd-display-nokia-5110-16-inch-blue-33v - Details: https://sigmanortec.ro/en/llms/p/1357.md - Price: 36.46 RON - Availability: Out of stock - Reference: 9244 · EAN: 5944874073584 - Specifications: Input Voltage: 3.3 V; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English. 84x48 LCD screen with PCD8544 driver, ideal for Arduino projects and other development boards, displays clear text and images on a blue background. Communicates via SPI and operates at 3.3V logic with low consumption, the 1.6 inch size makes it suitable for compact interfaces and portable instrumentation. LCD display, Nokia 5110, with an 84x48 pixel resolution, compatible with Arduino and other development boards. It operates on a 3.3V logic level and is capable of displaying both alphanumeric characters and images. To use it together with a 5V development board, a logic level converter to 3.3VDC. is recommended. NOTE: The power supply voltage on VCC is 3.3VDC. DO NOT power it with 5V! ### Temperature and humidity sensor DHT22, AM2302, original - Page: https://sigmanortec.ro/en/temperature-and-humidity-sensor-dht22-am2302-original - Details: https://sigmanortec.ro/en/llms/p/1363.md - Price: 39.03 RON - Availability: In stock; 1-2 zile - Reference: 9250 · EAN: 5941651787931 - Specifications: Model: DHT22 / AM2302 Original digital DHT22 (AM2302) sensor for measuring temperature and humidity, compatible with Arduino and other development boards. Supply voltage 3.3-5VDC, digital output signal. Measured temperature -40 - 80 degrees C, resolution 0.1 degree, accuracy +-0.5 degree C. Measured humidity 0-100%, resolution 0.5%, accuracy +-2%. Supplied in a 4-pin housing. ### Temperature and humidity sensor, DHT11 - Page: https://sigmanortec.ro/en/temperature-and-humidity-sensor-dht11 - Details: https://sigmanortec.ro/en/llms/p/1364.md - Price: 4.66 RON - Availability: In stock; 1-2 zile - Reference: 9251 · EAN: 5940249727731 - Specifications: Model: DHT11 DHT11 temperature and humidity sensor, compatible with Arduino and other development boards, featuring a capacitive humidity sensor and a thermistor for temperature. Digital output, 4 pins (VCC, DATA, NC, GND). Power supply 3-5VDC, measures 0-50 degrees C (accuracy +-2 degrees C) and 20-90% RH (accuracy +-5%). Response time ### Resistive pressure sensor, RFP602, 5Kg, compatible FSR402, 10mm - Page: https://sigmanortec.ro/en/resistive-pressure-sensor-rfp602-5kg-compatible-fsr402-10mm - Details: https://sigmanortec.ro/en/llms/p/1339.md - Price: 26.49 RON - Availability: In stock; 1-2 zile - Reference: 9228 · EAN: 5949975435767 Piezoresistive force sensor RFP602, thin and flexible, compatible with FSR402. Measures up to 5Kg over an active area of about 10mm. Connects without polarity, like a resistor, and requires a 10K pull down resistor between GND and the Analog pin for analog reading. Supply voltage: 3.3-5VDC. Tail length: 49mm. Compatible with Arduino and other development boards. ### LoRa module RFM96, 868MHz, Ultra-long range, 3.3V - Page: https://sigmanortec.ro/en/lora-module-rfm96-868mhz-ultra-long-range-33v - Details: https://sigmanortec.ro/en/llms/p/1345.md - Price: 57.28 RON - Availability: In stock; 1-2 zile - Reference: 9233 · EAN: 5945556280528 - Specifications: Input Voltage: 3.3VDC; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English. LoRa module RFM96 for 868MHz, powered at 3.3VDC, suited for telemetry and IoT applications. Provides ultra-long range communication over 20 km under good conditions, sensitivity down to -148 dBm and RF output power up to +20 dBm, with low power consumption. Compatible with Arduino and other development boards; requires a logic level converter. Dimensions: 16 x 16mm. ### Bluetooth BLE 5.0 module, HM-18 - Page: https://sigmanortec.ro/en/bluetooth-ble-50-module-hm-18 - Details: https://sigmanortec.ro/en/llms/p/1350.md - Price: 60.72 RON - Availability: In stock; 1-2 zile - Reference: 9237 · EAN: 5940630174373 Bluetooth BLE 5.0 module (HM-18) based on the TI CC2640R2F chip, compatible with Arduino and other development boards, Android and iOS phones. Works as both Master and Slave, supports HM-10 type AT commands, with authentication and encryption. Power supply and logic level 3.3V, adjustable RF power, range up to 100m in open field, 2.4GHz frequency, GFSK modulation. Dimensions 27 x 13 x 2mm. ### ESP8266, T77, ESP-12E Shield - Page: https://sigmanortec.ro/en/esp8266-t77-esp-12e-shield - Details: https://sigmanortec.ro/en/llms/p/1226.md - Price: 26.80 RON - Availability: Out of stock - Reference: 9210 · EAN: 5941735507714 ESP8266 WiFi shield (T77, ESP-12E), directly compatible with UNO R3, Mega 2560 and Leonardo, can also work standalone with all pins accessible. Built-in 3.3V level converter, 4 DIP switches for operating mode selection, USB or OTA programming, AP and Station support. Power supply 5VDC, 32-bit architecture, 80-160MHz, 32MB Flash, 802.11 b/g/n WiFi, 11 digital I/O pins, 1 analog pin 10-bit. ### SONOFF v.R2 wireless relay, 1 channel, new version - Page: https://sigmanortec.ro/en/sonoff-vr2-wireless-relay-1-channel-new-version - Details: https://sigmanortec.ro/en/llms/p/1231.md - Price: 58.09 RON - Availability: Out of stock - Reference: R-9215 · EAN: 5941519169183 Remotely control lighting or other equipment ON/OFF via the eWeLink app, with voice commands via Google Home and Alexa, plus Siri integration via Raspberry bridge. Provides real-time status feedback and access from anywhere via 2.4GHz. Supports up to 10A and 2200W, low standby power consumption, flame-resistant ABS housing and user sharing function. SONOFF relay version R2, with one channel, is the improved version of the standard model. This relay allows remote control via eWeLink, Google Home, Alexa and Siri (only by using a Raspberry board as a bridge between eWeLink and Apple Home). You can connect a multitude of devices that can be controlled by turning ON/OFF. ### SONOFF T2 Touch Switch, 2 Channels - Page: https://sigmanortec.ro/en/sonoff-t2-touch-switch-2-channels - Details: https://sigmanortec.ro/en/llms/p/1232.md - Price: 172.74 RON - Availability: In stock; 1-2 zile - Reference: R-9216 · EAN: 5949320931302 SONOFF T2 Touch Switch (TOEU2C-TX), 2 channels, white glass panel with guide LED for manual control. 2.4GHz WiFi connection (802.11 b/g/n), remote control via the eWeLink app and voice control with Google Home and Amazon Alexa. Provides ON/OFF feedback for each channel and a share function. Power supply 100-240VAC, operating temperature 0-40°C. ### Display 3.5 UNO, ILI9486, 320x480, 8bit, Touch - Page: https://sigmanortec.ro/en/display-35-uno-ili9486-320x480-8bit-touch - Details: https://sigmanortec.ro/en/llms/p/1233.md - Price: 121.12 RON - Availability: In stock; 1-2 zile - Reference: 9217 · EAN: 5943646083509 3.5 inch TFT touch shield for Arduino UNO and Mega2560, ideal for fast graphical interfaces and data display. Mounts directly on the board, without additional wiring, offers 480x320 resolution and 65k colors, communicates on 8-bit parallel bus for higher speed, has resistive touch with stylus, includes 5V 3.3V logic converter and integrated SD card reader. Shield Display color with touch, 3.5 inch, for UNO and MEGA, with SD card, ILI9486 driver and Bus 8bit. The display integrates directly on the UNO and Mega2560 boards, without the need for other connections, and offers a color resolution of 480x320 pixels. Supports 65k 16-bit RGB colors. ### Pressure and temperature sensor, BMP280, 5V - Page: https://sigmanortec.ro/en/pressure-and-temperature-sensor-bmp280-5v - Details: https://sigmanortec.ro/en/llms/p/1021.md - Price: 8.91 RON - Availability: In stock; 1-2 zile - Reference: 9167 · EAN: 5941054463043 - Specifications: Input Voltage: 5 V Module with Bosch BMP280 sensor for measuring atmospheric pressure and temperature, operates at 5V logic voltage. Communicates via I2C (address 0x76, up to 3.4MHz) or SPI (up to 10MHz). Temperature range: -40C to +85C, resolution 0.01C, accuracy +-1C. Pressure: 300-1100hPa, resolution 0.18Pa, accuracy +-1Pa. Can be used as an altimeter with an accuracy of about 1m. Compatible with Arduino and other development boards. ### AD/DA converter module, photoresistor, thermistor, PCF8591, I2C - Page: https://sigmanortec.ro/en/ad-da-converter-module-photoresistor-thermistor-pcf8591-i2c - Details: https://sigmanortec.ro/en/llms/p/1046.md - Price: 14.17 RON - Availability: In stock; 1-2 zile - Reference: 9158 · EAN: 5946152242743 Quickly expand analog measurement and control capabilities for Arduino and other boards using the PCF8591 over I2C. It offers 4 ADC inputs and 1 8-bit DAC output, includes jumper-enabled LDR, thermistor, and potentiometer, operates at 2.5-5V, and has a fixed I2C address of 0x48 for easy integration into projects. This module uses the integrated PCF8591 (you can download the datasheet from the product page), compatible with Arduino and other development boards, useful when the development board has a limited number of ADC ports or does not meet the necessary specifications. The usefulness of the digital to analog signal conversion function should also be mentioned. Analogue ADC input … ### Inductive proximity sensor SN04-P, NO, 10-30V, PNP - Page: https://sigmanortec.ro/en/inductive-proximity-sensor-sn04-p-no-10-30v-pnp - Details: https://sigmanortec.ro/en/llms/p/1220.md - Price: 16.52 RON - Availability: In stock; 1-2 zile - Reference: 9204 · EAN: 5947495848159 - Specifications: Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English. SN04-P inductive proximity sensor, PNP, 3-wire, normally open (NO) operation, for detecting metal via induction. Supply voltage 10-30VDC, max current 5mA, detection distance up to 5mm. PNP output, red status LED, IP67 protection. Dimensions 18.2 x 17.5 x 34mm, wire length 1m. ### GPS Module GY-GPS/V1, ceramic antenna, u-blox 7 receiver, 3-5V - Page: https://sigmanortec.ro/en/gps-module-neo-8m-3-5v-with-antenna - Details: https://sigmanortec.ro/en/llms/p/1223.md - Price: 83.38 RON - Availability: In stock; 1-2 zile - Reference: 9225 · EAN: 5944083361021 - Specifications: Supply Voltage: 3; Maximum Input Voltage: 5; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English. GPS module for location, navigation and telemetry projects, with u-blox 7 receiver and active 25x25 mm ceramic antenna on u.FL for flexible mounting. It provides coordinates, altitude, speed, satellites and UTC time in NMEA at 9600 baud, via UART TTL compatible with Arduino, ESP, STM32 and Pico. 3-5V power supply for 5V and 3.3V boards, backup battery for faster fix, LEDs for power and GPS fix. GPS module with included active ceramic antenna, intended for positioning, navigation, route logging, time synchronization, and telemetry applications. ### LM35 temperature sensor, TO92, compatible - Page: https://sigmanortec.ro/en/lm35-temperature-sensor-to92-compatible - Details: https://sigmanortec.ro/en/llms/p/1224.md - Price: 4.34 RON - Availability: Out of stock - Reference: R-9208 · EAN: 5942677876708 Compatible analog temperature sensor LM35DZ in TO-92 package with 3 pins, reference R-9208. Provides a linear signal of 10mV/C, supply voltage 4-20VDC, output voltage 6V, output current 10mA. Typical accuracy 0.5°C at 25°C, otherwise 1°C. Operating range 0-100°C, extendable to negative values with an external circuit. Compatible with Arduino and other development boards; made in China, not an original part. ### Serial to USB adapter for NRF24L01, CH340 - Page: https://sigmanortec.ro/en/serial-to-usb-adapter-for-nrf24l01-ch340 - Details: https://sigmanortec.ro/en/llms/p/1014.md - Price: 28.81 RON - Availability: In stock; 1-2 zile - Reference: 9166 · EAN: 5949703906187 The adapter allows wireless serial communication together with an NRF24L01 module, ideal for stable links over long distances. It integrates the CH340T USB interface and works on most Windows systems, supports AT commands for quick configuration and includes a red LED for power and a blue LED for status, operating at 125. Serial to NRF24L01 converter module, which uses the CH340T communication driver. It is used together with an NRF24L01 module and is compatible with most Windows systems. The board may be incompatible with the latest version of the CH340 driver (2023). Download the driver from the Download section. ### LED Matrix Module, 4x, MAX7219, Blue - Page: https://sigmanortec.ro/en/led-matrix-module-4x-max7219-blue - Details: https://sigmanortec.ro/en/llms/p/990.md - Price: 35.49 RON - Availability: In stock; 1-2 zile - Reference: 9182 · EAN: 5943850530875 4x 8x8 LED matrix display for Arduino projects and other development boards, ideal for simple texts, symbols and animations. It uses the MAX7219 driver and controls all 256 LEDs with only 3 data lines, operates at 5V, has clear blue illumination and a compact 128 x 32 x 13 mm format for easy integration into panels and housings. The module composed of 4 8x8 type LED matrices that uses the integrated MAX7219, compatible with Arduino and other development boards. This matrix is composed of four individual 8x8 modules, each integrating a MAX7219 driver. They are interconnected and can be used together with only 3 data lines. Always check the correct mounting of the individual displays. ### A9G, GSM, GPRS, GPS development board - Page: https://sigmanortec.ro/en/a9g-gsm-gprs-gps-development-board - Details: https://sigmanortec.ro/en/llms/p/995.md - Price: 184.28 RON - Availability: In stock; 1-2 zile - Reference: 9187 · EAN: 5942231607847 A9G development board offering GSM/GPRS/SMS/Audio connectivity and dual mode GPS/BDS positioning. Includes charging circuit for 3.7V lithium battery, microphone, speaker interface, USB communication, TF card slot, accelerometer, and SPI, I2C2 and ADC interfaces. AT firmware, 5VDC power via Micro USB or 3.7V lithium battery, serial communication speed 2400bps-1.8Mbps, default baud rate 115200. ### Current to voltage converter module, 0-20mA to 0-5V, LM358 - Page: https://sigmanortec.ro/en/current-to-voltage-converter-module-0-20ma-to-0-5v-lm358 - Details: https://sigmanortec.ro/en/llms/p/974.md - Price: 13.15 RON - Availability: Out of stock - Reference: 9163 · EAN: 5941154040731 - Specifications: Minimum Output Voltage: 0; Maximum Output Voltage: 5 Converts 0-20mA current signal into a proportional voltage 0-5V, ideal for interfacing industrial sensors with ADC inputs or microcontrollers. Uses LM358 for stable conversion, operates at 10-30V, includes potentiometer for precise output calibration, operates between -25 and 85C. The module for converting current (IV) between 0 and 20mA to voltage between 0 and 5V. It converts a current into a proportional voltage. For example, applying a current of 20mAh to the input will produce a voltage of 5VDC at the output, applying a current of 4mA will produce an output voltage of 1V. The potentiometer is used to adjust the output voltage. Specifications: Integrated: LM358 Supply voltage: 0-30V … ### Display 3.5, 320x480, Arduino compatible, ILI9486, 8Bit - Page: https://sigmanortec.ro/en/display-35-320x480-arduino-compatible-ili9486-8bit - Details: https://sigmanortec.ro/en/llms/p/962.md - Price: 98.25 RON - Availability: In stock; 1-2 zile - Reference: 9153 · EAN: 5942479004965 3.5 inch TFT LCD display, resolution 480x320 pixels, RGB 65K colors, ILI9486 driver, 8-bit parallel bus. Mounts as a shield directly on Arduino UNO and MEGA, no extra wiring needed. Operating voltage 3.3-5VDC with integrated voltage regulator. No touch support, but includes an SD card slot. Active screen size 73.44 x 48.96mm, PCB size 85.5 x 55.5mm. ### Optical sensor, TCST2103 - Page: https://sigmanortec.ro/en/optical-sensor-tcst2103 - Details: https://sigmanortec.ro/en/llms/p/973.md - Price: 4.56 RON - Availability: In stock; 1-2 zile - Reference: 9162 · EAN: 5944759324183 Optical sensor TCST2103, photoelectric, with IR emitter and phototransistor, for detecting the presence of objects in a slot. Can be used as an optical switch, counter or encoder. Slot width 3.1 mm, ambient light filter, wavelength 950 nm, response time 10 ms, If current 60 mA, collector current Ic 4 mA, no amplification. ### 8x8 led matrix module, MAX7219, 5V - Page: https://sigmanortec.ro/en/8x8-led-matrix-module-max7219-5v - Details: https://sigmanortec.ro/en/llms/p/956.md - Price: 12.40 RON - Availability: Out of stock - Reference: 9145 · EAN: 5948439471723 - Specifications: Input Voltage: 5 V; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English. Displays numbers, symbols or animations on an 8x8 LED matrix, ideal for projects with Arduino and other boards. Includes MAX7219 driver for simple 3-wire control and 5V power supply. Has INPUT and OUTPUT connectors for individual use or cascade connection with multiple modules. Comes with control board and wires for quick assembly. 8*8 LED matrix module, 16 LEDs, compatible with Arduino and other development boards. This module uses the integrated MAX7219 and is composed of the matrix plus the control board and wires. The module has both INPUT and OUTPUT and can be used alone or connected in cascade with other modules. Specifications: Supply voltage: 5VDC INPUT interface: Yes … ### Sensor 9 axis, 10 DOF, GY-91, MPU9250, BMP280, 3-5V - Page: https://sigmanortec.ro/en/sensor-9-axis-10-dof-gy-91-mpu9250-bmp280-3-5v - Details: https://sigmanortec.ro/en/llms/p/942.md - Price: 153.88 RON - Availability: In stock; 1-2 zile - Reference: 9131 · EAN: 5949178019856 - Specifications: Supply Voltage: 3; Maximum Input Voltage: 5; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English. 10 DOF sensor module GY-91 with MPU9250 and BMP280 chips, providing 3-axis gyroscope, accelerometer and compass plus atmospheric pressure for altitude estimation. Communicates via I2C/SPI, operates at 3-5V with internal regulator, 16-bit AD converter, pin spacing 2.54mm, dimensions 20.5 x 14.3mm. ### Voice recognition module, SRVR, V3 - Page: https://sigmanortec.ro/en/voice-recognition-module-srvr-v3 - Details: https://sigmanortec.ro/en/llms/p/932.md - Price: 241.61 RON - Availability: In stock; 1-2 zile - Reference: 9151 · EAN: 5942337872927 Voice recognition module for Arduino and other boards, ideal for controlling projects via voice commands. Supports up to 80 learned commands and recognizes up to 7 simultaneously, is fully controlled via serial port or simplified via input pins, and GPIO outputs can generate signals for automatic actions. Includes microphone and operates at 5V with low consumption. Voice recognition module compatible with Arduino and other development boards. This is a voice command recognition module, which supports up to 80 voice commands and up to 7 simultaneous commands. ### Temperature sensor DS18B20, TO-92, IC - Page: https://sigmanortec.ro/en/temperature-sensor-ds18b20-to-92-ic - Details: https://sigmanortec.ro/en/llms/p/938.md - Price: 7.60 RON - Availability: Out of stock - Reference: 9127 · EAN: 5947192207532 Digital temperature sensor DS18B20 (Dallas), TO-92 package with 3 pins, uses the OneWire protocol over a single data pin with a unique 64-bit ROM address. Supply voltage 3-5.5VDC, measuring range -55...+125°C, accuracy ±0.5°C, selectable resolution 9-12 bit. Requires a 4.7K pull-up resistor for OneWire operation, using only the DATA and GND pins. ### Audio transmitter module, Bluetooth 5.1, BLE - Page: https://sigmanortec.ro/en/audio-transmitter-module-bluetooth-51-ble - Details: https://sigmanortec.ro/en/llms/p/911.md - Price: 38.31 RON - Availability: In stock; 1-2 zile - Reference: 9108 · EAN: 5940292546211 Bluetooth 5.1 BLE audio transmitter with integrated USB sound card, ideal for quickly sending sound from PC, TV or other sources to Bluetooth headphones or speakers, without cables. It offers stable stereo signal through GFSK modulation and antenna on PCB, is powered at 3.3-5V and has easy pairing without password, with support for AT commands via serial for integration into Arduino projects. Bluetooth audio transmission module integrated with a USB sound card, which adopts Bluetooth version 4.1 to ensure the quality and stability of the transmitted audio signal. This module can receive any audio signal from any audio source such as computer USB port, phones, TV, AUX, etc... ### NTC10K temperature sensor, with 1-meter wire - Page: https://sigmanortec.ro/en/ntc10k-temperature-sensor-wired - Details: https://sigmanortec.ro/en/llms/p/898.md - Price: 5.28 RON - Availability: In stock; 1-2 zile - Reference: 9090 · EAN: 5949268068948 The NTC10K temperature sensor is a passive thermistor with a nominal resistance of 10K ohms at 25°C, ±1% tolerance and a B25/50 constant of 3380K. It comes with a 1-meter cable and an XH2.54 2-pin connector, in a 5 x 30 mm probe body. It requires no power supply and has no polarity. Connects via a resistive voltage divider to boards such as Arduino, ESP32, STM32 or Raspberry Pi Pico, or to thermostats and systems accepting NTC 10K B3380 sensors. ### 9 axis sensor module, GY-85, 9DOF, I2C - Page: https://sigmanortec.ro/en/9-axis-sensor-module-gy-85-9dof-i2c - Details: https://sigmanortec.ro/en/llms/p/902.md - Price: 46.74 RON - Availability: In stock; 1-2 zile - Reference: 9100 · EAN: 5947126189606 9 axis sensor module GY-85 (9DOF) with I2C communication, integrating on the same PCB the ITG3205 gyroscope, ADXL345 accelerometer and HMC5883L magnetometer, providing 3 axes for each sensor. Power supply 3-5VDC, with integrated LLC circuit for compatibility with 3-5V systems. Compatible with Arduino and other development boards, size 22 mm. ### Current and voltage sensor MAX471, GY-471 3A, 3-25V - Page: https://sigmanortec.ro/en/current-and-voltage-sensor-max471-gy-471-3a-3-25v - Details: https://sigmanortec.ro/en/llms/p/905.md - Price: 20.91 RON - Availability: In stock; 1-2 zile - Reference: 9102 · EAN: 5940576590787 - Specifications: Nominal Current: 3 A; Supply Voltage: 3; Maximum Input Voltage: 25; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English. GY-471 module with MAX471 sensor for measuring current (up to 3A) and voltage (3-25V DC). Compatible with Arduino and other 3.3-5V boards. Analog output for current and voltage via a 1:5 voltage divider. Allows detection of current direction (charging/discharging). Current sense resistor 35mOhm, direction resistor 2KOhm. Suitable for testing power supplies, batteries and embedded projects. ### Infrared speed sensor A22 - Page: https://sigmanortec.ro/en/infrared-speed-sensor-a22 - Details: https://sigmanortec.ro/en/llms/p/886.md - Price: 4.26 RON - Availability: In stock; 1-2 zile - Reference: 9079 · EAN: 5947524056630 Infrared speed sensor A22 (ref. 9079), photoelectric, compatible with Arduino and other development boards. Consists of an IR emitter and receiver that switches when the beam is interrupted, providing a digital output via LM393 comparator and H2010 optocoupler. Operates at 5V, has a 10mm slot between the arms and dimensions of 20 x 28 x 17mm. Signal on beam interruption: High. ### ESP32-CAM development board, Wi‑Fi, Bluetooth, OV5640 5MP - Page: https://sigmanortec.ro/en/esp32-cam-development-board-wifi-bluetooth-ov3660-3mp - Details: https://sigmanortec.ro/en/llms/p/895.md - Price: 81.97 RON - Availability: In stock; 1-2 zile - Reference: 9087 · EAN: 5948362424223 Compact solution for computer vision projects, video streaming and IoT, with WiFi 802.11b/g/n and Bluetooth 4.2 LE connectivity for wireless applications. It integrates a dual-core processor up to 240MHz and 4MB PSRAM for fast image processing, a 5MP OV5640 camera for detailed frames, TF card support and JPEG, BMP, grayscale formats, compatible with Arduino IDE for rapid development. The ESP32-CAM development board is a compact module that combines an ESP32 WiFi and Bluetooth processor with a 5MP OV5640 camera attached via an FPC connector, providing a complete solution for image capture and transmission in artificial vision, video streaming, and IoT projects. ### LED display module with serial interface TM1637 - Page: https://sigmanortec.ro/en/led-display-module-with-serial-interface-tm1637 - Details: https://sigmanortec.ro/en/llms/p/872.md - Price: 5.70 RON - Availability: In stock; 1-2 zile - Reference: 9066 · EAN: 5942024853895 LED display module with serial interface TM1637, featuring 4 digits with two central dots, suitable for clocks, counters or timers. Display size 0.36 inch, operating voltage 3.3-5V, brightness adjustable across 8 levels. Includes 4 M2 mounting holes. Pins: GND, VCC, DIO, CLK. Compatible with Arduino and other development boards. ### Flow sensor 0.3-6l/min, YF-S401, 120 degrees - Page: https://sigmanortec.ro/en/flow-sensor-03-6l-min-yf-s401-120-degrees - Details: https://sigmanortec.ro/en/llms/p/883.md - Price: 26.80 RON - Availability: In stock; 1-2 zile - Reference: 9076 · EAN: 5945936570706 YF-S401 flow sensor for liquids, measures flow rate between 0.3 and 6 l/min, using a stainless steel ball rotor and Hall sensor, PWM signal output on the yellow wire. Supply voltage 6V, maximum current 15mA at 5V, supported pressure ### Display LCD 2.8, TFT, Color, Shield UNO and Mega, Touch, SD, ILI9341 - Page: https://sigmanortec.ro/en/display-lcd-28-tft-color-shield-uno-and-mega-touch-sd-ili9341 - Details: https://sigmanortec.ro/en/llms/p/861.md - Price: 86.81 RON - Availability: In stock; 1-2 zile - Reference: 9055 · EAN: 5945958285756 2.8 inch color TFT display with resistive touch and microSD slot, usable as a shield on Arduino UNO and Mega boards. Resolution 240x320 pixels, 65K RGB 16-bit colors, ILI9341 driver, 8-bit parallel BUS interface, LED backlight. Integrated regulator supports 3.3V or 5V power from the host board. Dedicated pins for LCD control, 8-bit data lines and SPI interface for the SD card. ### Optical fingerprint sensor, Biovo, C3 - Page: https://sigmanortec.ro/en/optical-fingerprint-sensor-biovo-c3 - Details: https://sigmanortec.ro/en/llms/p/867.md - Price: 193.60 RON - Availability: Out of stock - Reference: R-9061 · EAN: 5948958145235 Optical fingerprint sensor module for access control and authentication in embedded projects, automatically starts scanning upon touch and stores up to 200 fingerprints in flash memory. Offers 500 dpi resolution and 0.45 s scanning time, easily connects via UART TTL interface to development boards, the package includes wires with plug for quick assembly. Optical fingerprint sensor module, Biovo, plus connection wires with plug (included in the package) This module scans the fingerprint and can store up to 200 fingerprints in the flash memory. The scanning process starts when the sensor is touched. Later, through serial connection, this module can be connected to any development board. ### Bluetooth 4.2 BLE audio module, stereo, MH-M28 - Page: https://sigmanortec.ro/en/bluetooth-42-ble-audio-module-stereo-mh-m28 - Details: https://sigmanortec.ro/en/llms/p/868.md - Price: 12.38 RON - Availability: Out of stock - Reference: 9062 · EAN: 5945623049560 Bluetooth 4.2 BLE audio module for stereo playback, ideal for DIY projects and active speakers, offers low consumption and stable connection up to 20 m in open space. It is powered by 5V via MicroUSB or 3.7-4.2V from a 1S battery, has audio output on the jack and supports WAV WMA FLAC APE MP3 lossless decoding. The connection is quick, the phone detects it and playback starts immediately. Bluetooth 4.2 audio module, M28. It is a module with low current consumption, supports the latest Bluetooth 4.2, two stereo channels for lossless playback. In open spaces, the distance reaches up to 20 meters. This module has a MicroUSB connection for power and an audio jack … ### Bluetooth 4.2 BLE audio module, stereo, MH-M38, 2x5W - Page: https://sigmanortec.ro/en/bluetooth-42-ble-audio-module-stereo-mh-m38-2x5w - Details: https://sigmanortec.ro/en/llms/p/869.md - Price: 14.91 RON - Availability: Out of stock - Reference: 9063 · EAN: 5940240466363 - Specifications: Type: Amplifier; Power: 0 - 20W Bluetooth 4.2 BLE audio module with integrated 2x5W amplifier, ideal for DIY speakers or compact audio projects, offers lossless stereo playback and quick connection from your phone. It operates at low consumption, has a range of up to 20 m in open space, is powered by MicroUSB at 5V or 3.7-4.2V , comes with included wires for easy assembly. Bluetooth 4.2 audio module, M38, provided with wires included in the package. The main difference between this module and other MH-M time modules... is given by the fact that it has an integrated amplifier with 2 channels of 5W. It is a module with low current consumption, supports the latest Bluetooth 4.2, two stereo channels for lossless playback. ### Current sensor ACS712 30A - Page: https://sigmanortec.ro/en/current-sensor-acs712-30a - Details: https://sigmanortec.ro/en/llms/p/847.md - Price: 9.98 RON - Availability: In stock; 1-2 zile - Reference: 9034 · EAN: 5943521356230 - Specifications: Nominal Current: 30 A ACS712 30A current sensor module for measuring AC or DC current and sending the value to Arduino or other development boards. Operates at 5VDC, features a power indicator LED, measures up to 30A maximum current, and has dimensions of 31 x 13 mm. ### OLED Display 0.96" I2C IIC White - Page: https://sigmanortec.ro/en/oled-display-096-i2c-iic-white - Details: https://sigmanortec.ro/en/llms/p/848.md - Price: 18.73 RON - Availability: In stock; 1-2 zile - Reference: 9035 · EAN: 5943663365398 Compact 0.96 inch OLED display with white pixels, ideal for Arduino projects and similar boards where space and power consumption matter. It offers 128x64 resolution for clear display, I2C IIC interface with minimum pin count, viewing angle over 160 degrees and operation at 3-5V without backlight for high efficiency. OLED display 0.96 inch Blue color, compatible with Arduino and other development boards. Ideal for small projects thanks to the I2C and IIC communication interface. This display does not require backlighting (this is given by the pixels). Specifications: High resolution: 128X64 Visual angle: >160 ° Ultra low consumption: 0.08W Supply voltage: DC 3V-5V … ### Bluetooth 4.1 audio receiver module, MicroSD, TF, Card, USB interface, 3.7 - 5V - Page: https://sigmanortec.ro/en/bluetooth-41-audio-receiver-module-microsd-tf-card-usb-interface-37-5v - Details: https://sigmanortec.ro/en/llms/p/849.md - Price: 19.93 RON - Availability: In stock; 1-2 zile - Reference: 9036 · EAN: 5944825237898 - Specifications: Supply Voltage: 3.7; Maximum Input Voltage: 5; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English. Quickly transform any speaker or amplifier into a wireless player, with Bluetooth 4.1 and a range of over 15 m for stable streaming. Offers direct playback from USB and MicroSD TF card, compatible with MP3, WAV, APE, FLAC, with 3.5 mm stereo jack output for easy connection. 3.7-5V power supply via Micro-USB, simple control for changing mode, songs and volume, LED indicator for status. ### 3.2 inch LCD Display, 240x320, Touch, ILI9341, SD, 3.3-5V - Page: https://sigmanortec.ro/en/32-inch-lcd-display-240x320-touch-ili9341-sd-33-5v - Details: https://sigmanortec.ro/en/llms/p/858.md - Price: 116.05 RON - Availability: In stock; 1-2 zile - Reference: 9051 · EAN: 5944363947884 3.2 inch TFT color screen with resistive touch, 240x320 resolution and ILI9341 driver, ideal for graphic interfaces on STM32 and C51 projects. Offers 65K colors display on 8 or 16 bit parallel bus, includes microSD reader on the back for resources and logging, has integrated regulator for 3.3-5V power supply and XPT2046 touch controller for precise interaction. The 3.5-inch color LCD touch display is a practical solution for embedded projects and development systems based on STM32, providing clear display in 65K colors and support for RGB interface in 8 and 16 bits. ### PAM8610 stereo amplifier, 2x10W, Hi-Fi - Page: https://sigmanortec.ro/en/pam8610-stereo-amplifier-2x10w-hi-fi - Details: https://sigmanortec.ro/en/llms/p/860.md - Price: 20.44 RON - Availability: In stock; 1-2 zile - Reference: 9053 · EAN: 5945678787677 - Specifications: Type: Amplifier; tension: AD; Power: 0 - 20W Class D Hi-Fi stereo amplifier module built around the PAM8610 IC, delivering 2x10W at 8 Ohm. Powered by 7.5-15VDC (recommended 12VDC) via a 5.5x2.1mm barrel jack, center pin positive. Quiescent current 20mA, frequency response 20Hz-50KHz. Includes a volume potentiometer, 3.5mm stereo audio input jack, ON/OFF and MUTE connectors, and a status LED. ### Pulse sensor, oximeter, optical, GY MAX30100, I2C - Page: https://sigmanortec.ro/en/pulse-sensor-oximeter-optical-gy-max30100-i2c - Details: https://sigmanortec.ro/en/llms/p/837.md - Price: 8.75 RON - Availability: In stock; 1-2 zile - Reference: 9026 · EAN: 5948193060423 Optical sensor module for pulse and SpO2 measurement, based on MAX30100, communicates via I2C (address 0x57). Power supply 3-5VDC, pins VIN, GND, SCL, SDA, INT. Includes LEDs, photodetector and low-noise electronics with ambient light rejection. LED current and refresh rate are programmable, standby can be disabled via software (0.7uA typ). Operating temperature -40 C to +85 C, dimensions 12.7 x 12.7mm. Suitable for wearable applications. ### 4 relay module with remote control, 12V, 433Mhz, programmable - Page: https://sigmanortec.ro/en/4-relay-module-with-remote-control-12v-433mhz-programmable - Details: https://sigmanortec.ro/en/llms/p/813.md - Price: 67.97 RON - Availability: In stock; 1-2 zile - Reference: 9005 · EAN: 5940935125476 - Specifications: tension: AD; Output Type Voltage: Closed-Open Contact; Input Voltage: 12 V; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English. 4-channel relay module for remote control, 12V DC supply, includes a 433Mhz remote control. Uses a decoder with chip 2272 and supports momentary, ON/OFF or latched operating modes, plus mixed channel modes. Comes with a plastic case for mounting, dimensions 170 x 110 x 50mm. The remote's battery, type 23A 12V, is not included. Output is a closed-open contact type. ### Addressable LED strip, RGB, WS2812, 60led/m, 10cm, Black - Page: https://sigmanortec.ro/en/addressable-led-strip-rgb-ws2812-60led-m-10cm-black - Details: https://sigmanortec.ro/en/llms/p/818.md - Price: 4.84 RON - Availability: In stock; 1-2 zile - Reference: 9010 · EAN: 5945083095312 Addressable RGB LED strip with WS2812 chip, 5050 LEDs, density 60led/m (6 LEDs per 10cm segment). Black PCB with double-sided adhesive tape on the back for mounting. Power supply 5VDC, consumption 0.3W per LED. Each LED can be controlled individually via a microcontroller such as Arduino, allowing RGB colors and dynamic effects. Some batches may have a thin silicone layer on the LED side. ### NTC thermistor 100k - Page: https://sigmanortec.ro/en/ntc-thermistor-100k - Details: https://sigmanortec.ro/en/llms/p/768.md - Price: 9.68 RON - Availability: In stock; 1-2 zile - Reference: 22003 · EAN: 5941890161868 NTC thermistor with wire and glass head, model NTC 3950, used for temperature measurement in 3D printer heating cartridges. Resistance 100K Ohm at 25°C, accuracy 1%, temperature range -40 to +300°C, maximum dissipated power 45mW, cable length 1m, glass head thickness 2mm for fast response. ### IR photoelectric sensor switch 5V E18-D80NK - Page: https://sigmanortec.ro/en/ir-photoelectric-sensor-switch-5v-e18-d80nk - Details: https://sigmanortec.ro/en/llms/p/759.md - Price: 22.68 RON - Availability: In stock; 1-2 zile - Reference: 33464 · EAN: 5942651474647 - Specifications: Input Voltage: 5 VDC; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English. IR proximity photoelectric sensor with integrated emitter and receiver, ideal for obstacle detection, parts counting and robotics projects. It offers NPN digital output, operates at 5V with low consumption below 25mA, has adjustable detection distance between 3 and 80 cm and fast response time of 2ms, for stable detection of opaque or transparent objects. Infrared (IR) proximity photoelectric sensor that includes a receiver and a transmitter. The detection distance can be adjusted according to need. Among the advantages of this module can be listed the detection of a long distance, reduced interference with light from the visible spectrum and ease of use. ### Photoelectric sensor switch, IR, 6-36V, E18-B03N1 - Page: https://sigmanortec.ro/en/photoelectric-sensor-switch-ir-6-36v-e18-b03n1 - Details: https://sigmanortec.ro/en/llms/p/760.md - Price: 36.99 RON - Availability: In stock; 1-2 zile - Reference: 33174 · EAN: 5942580278965 - Specifications: Input Voltage: 6 - 36 VDC; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English. E18-B03N1 IR photoelectric proximity sensor, supply voltage 6-36VDC, NPN NO output. Detection distance adjustable via potentiometer between 10-30cm (+-10%). Thread diameter 17.6mm, dimensions 75 x 23.1mm, 1 meter cable, operating current 300mA. Suitable for automation, counting or positioning, easy to integrate with PLC or modules. ### IR photoelectric sensor switch DS30P1, PNP, 30cm, 6-36VDC - Page: https://sigmanortec.ro/en/ir-photoelectric-sensor-switch-ds30p1-pnp-30cm-6-36vdc - Details: https://sigmanortec.ro/en/llms/p/761.md - Price: 23.17 RON - Availability: In stock; 1-2 zile - Reference: 33541 · EAN: 5946218784927 - Specifications: Maximum Input Voltage: 36; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English. IR photoelectric sensor for proximity detection and object counting, ideal for automation, robots or safety systems. It offers a normally open PNP digital output, operates at 6-36VDC with low consumption below 25mA, has an adjustable detection distance of up to 30cm and a fast response of 2ms for precise switching. Infrared (IR) proximity photoelectric sensor that includes a receiver and a transmitter. The detection distance can be adjusted according to need, up to 30cm. It can be used to count, detect obstacles, build a maze robot, and many other applications. Specifications: Output: Digital, I/O Supply voltage: 6 - 36VDC Operation type: N/O, Normally Open Output: PNP Consumption: <25mA … ### 40mm 3W speaker - Page: https://sigmanortec.ro/en/40mm-3w-speaker - Details: https://sigmanortec.ro/en/llms/p/721.md - Price: 7.50 RON - Availability: In stock; 1-2 zile - Reference: 33072 · EAN: 5940543217075 - Specifications: Power: 0 - 20W Compact 40 mm speaker, height 20 mm, rated power 3 W, impedance 4 Ω, sensitivity 83 dB/W, frequency response 0.20-20 kHz, THD ≤ 5%. Paper diaphragm, PU surround, black cap, permanent magnet, moving coil. Full range playback, suitable for mini portable speakers, compact stereo systems or DIY projects. Connects to an amplifier with output up to 3 W at 4 Ω. ### Speaker Buzzer 3-24V, 100dB - Page: https://sigmanortec.ro/en/speaker-buzzer-3-24v-100db - Details: https://sigmanortec.ro/en/llms/p/722.md - Price: 4.19 RON - Availability: In stock; 1-2 zile - Reference: 33163 · EAN: 5942941745624 - Specifications: Supply Voltage: 3; Maximum Input Voltage: 24; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English. Piezo buzzer SFM-27-W for warnings and signaling in electronic projects and industrial applications. Power supply 3-24V DC, continuous sound up to 100dB at 12V/30cm, diameter 3cm, current consumption approximately 15mA at 12V, resonance frequency 2.5±0.5KHz. Operating temperature -20...+45C. ### SS495A 95A Solid State Sensor - Page: https://sigmanortec.ro/en/ss495a-95a-solid-state-sensor - Details: https://sigmanortec.ro/en/llms/p/724.md - Price: 3.64 RON - Availability: In stock; 1-2 zile - Reference: 22065 · EAN: 5946462592569 The SS495A is a bipolar, ratiometric Hall-effect sensor for measuring position and variable magnetic fields. It operates at 4.5-10.5 VDC, input current 8.7 mA, sink/source output with maximum output voltage 0.2 VDC, response time 3 μs. Operating temperature: -40°C to +150°C. It has 3 pins (VCC, GND, OUT), radial pin configuration, rectangular case. ### Shield MicroSD D1 Mini - Page: https://sigmanortec.ro/en/shield-microsd-d1-mini - Details: https://sigmanortec.ro/en/llms/p/711.md - Price: 8.47 RON - Availability: In stock; 1-2 zile - Reference: 33158 · EAN: 5943395391672 The MicroSD D1 Mini shield is a board that attaches to a Wemos D1 Mini via extension pins, adding a slot for Micro SD/Micro SDHC cards, typically up to 32GB. It communicates via SPI, operates at 3.3V, and uses pins D5 (SCK), D6 (MISO), D7 (MOSI), D4 (CS). It supports FAT16/FAT32 file systems and the Arduino SD or SdFat libraries, useful for data or file logging. ### MP3 Shield VS1053 for UNO, microphone and TF slot, 5V - Page: https://sigmanortec.ro/en/mp3-shield-vs1053-for-uno-microphone-and-tf-slot-5v - Details: https://sigmanortec.ro/en/llms/p/713.md - Price: 66.95 RON - Availability: In stock; 1-2 zile - Reference: 33173 · EAN: 5946368294734 - Specifications: Input Voltage: 5V; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English. Shield with VS1053 audio decoder for Arduino Uno, ideal for MP3 playback from embedded projects. Integrates card slot, SPI interface for fast communication, stereo audio output for connection to amplifier or headphones, compatible with Arduino libraries for easy control of play, pause and volume. This expansion board for Arduino UNO is a practical and versatile solution for projects that require MP3 audio playback and recording. Equipped with the VS1053 decoder, the board supports multiple audio formats such as MP3, Ogg Vorbis, AAC, WMA, and MIDI, offering high flexibility for various multimedia applications. ### Alarm siren 12V, 120dB - Page: https://sigmanortec.ro/en/alarm-siren-12v-120db - Details: https://sigmanortec.ro/en/llms/p/719.md - Price: 20.09 RON - Availability: In stock; 1-2 zile - Reference: 33451 · EAN: 5949481699585 - Specifications: Input Voltage: 12 V; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English. Alarm siren powered at 12VDC, with a sound level of 120dB, intended for anti-burglary systems. The sound frequency is 3.8kHz +-10%, with a transmission rate of 3Hz for a distinct signal. It has a diameter of 54mm and a height of 48mm, a compact format easy to integrate into security projects. ### Transmitter plus Receiver Set 433MHz SYN115, SYN480 - Page: https://sigmanortec.ro/en/transmitter-plus-receiver-set-433mhz-syn115-syn480 - Details: https://sigmanortec.ro/en/llms/p/701.md - Price: 13.49 RON - Availability: In stock; 1-2 zile - Reference: 33223 · EAN: 5949532802629 Set of SYN115 transmitter and SYN480R receiver for wireless transmission at 433MHz with ASK/OOK modulation. The transmitter operates at 1.8-3.6V, speed ### Vibration sensor 801S Adjustable - Page: https://sigmanortec.ro/en/vibration-sensor-801s-adjustable - Details: https://sigmanortec.ro/en/llms/p/680.md - Price: 20.57 RON - Availability: In stock; 1-2 zile - Reference: 33150 · EAN: 5947273383612 Adjustable vibration sensor 801S with analog output, for detecting shocks and vibrations in electronic projects and industrial equipment. Sensitivity is adjusted via a potentiometer, provides a stable and repeatable response, operates at usual supply voltages, and has a compact format for easy board mounting. ### Vibration, motion, tilt sensor - Page: https://sigmanortec.ro/en/vibration-motion-tilt-sensor - Details: https://sigmanortec.ro/en/llms/p/681.md - Price: 6.11 RON - Availability: In stock; 1-2 zile - Reference: 22105 · EAN: 5944095445894 SW-420 sensor module for detecting vibration, motion or tilt. Sensitivity adjustable via potentiometer, digital output LOW/HIGH, LM393 comparator, power supply 3.3-5VDC. Board with mounting hole, dimensions 32 x 14 mm. Suitable for anti-theft alarms, security projects and earthquake detection. ### LM393 IR speed sensor - Page: https://sigmanortec.ro/en/lm393-ir-speed-sensor - Details: https://sigmanortec.ro/en/llms/p/682.md - Price: 8.11 RON - Availability: In stock; 1-2 zile - Reference: 22019 · EAN: 5945092930901 LM393 IR speed sensor used for measuring rotation speed and counting optical (infrared) pulses. Provides a digital output signal (0 and 1), operates at 3.3V ~ 5V, and includes an LED indicator for output status. Dimensions: 32 x 14 x 7 mm. Compatible with Arduino and other development boards. ### Waterproof temperature probe sensor DS18B20 - Page: https://sigmanortec.ro/en/waterproof-temperature-probe-sensor-ds18b20 - Details: https://sigmanortec.ro/en/llms/p/668.md - Price: 8.59 RON - Availability: Out of stock - Reference: 22193 · EAN: 5946203836822 Waterproof temperature probe sensor DS18B20 with stainless steel tip, suitable for humid environments or industrial applications. Compatible with Arduino and other development boards, communicates via OneWire, requires a 4.7k pull-up resistor on the DATA pin. Measures between -20 and 105°C, cable length 1 m, 3 wires. Type: NTC 10k±1% 3950. ### Precision Temperature and Humidity Sensor SHT21, GY-21 - Page: https://sigmanortec.ro/en/precision-temperature-and-humidity-sensor-sht21-gy-21 - Details: https://sigmanortec.ro/en/llms/p/670.md - Price: 46.52 RON - Availability: In stock; 1-2 zile - Reference: 33145 · EAN: 5946983275873 GY-21 sensor module with SHT21 for measuring temperature and humidity, suitable for IoT projects and automation. It offers stable and fast measurements, I2C communication for easy integration with Arduino and Raspberry Pi, low power consumption, and a compact breakout format suitable for prototyping and mounting in tight spaces. ### DHT11 temperature and humidity sensor, Digital, 3.3-5V - Page: https://sigmanortec.ro/en/dht11-temperature-and-humidity-sensor-digital-33-5v - Details: https://sigmanortec.ro/en/llms/p/671.md - Price: 6.18 RON - Availability: In stock; 1-2 zile - Reference: 22196 · EAN: 5945691778775 - Specifications: Supply Voltage: 3.3 V; Maximum Input Voltage: 5 V; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English. DHT11 digital temperature and humidity sensor, 3.3-5VDC power supply, digital output. Measures humidity between 20% and 95% RH with ±5% accuracy, and temperature between 0 and 50°C with ±2°C accuracy. Dimensions: 32 x 14 mm. Compatible with Arduino and other development boards. ### DHT22 AM2302 temperature and humidity sensor, original, module - Page: https://sigmanortec.ro/en/dht22-am2302-temperature-and-humidity-sensor-original-module - Details: https://sigmanortec.ro/en/llms/p/672.md - Price: 39.40 RON - Availability: In stock; 1-2 zile - Reference: 33144 · EAN: 5949079332641 Digital sensor module DHT22 AM2302, original, for measuring temperature and humidity, compatible with Arduino and other development boards. Power supply 3-5VDC, digital signal on DO pin, 16-bit resolution. Measured temperature -40-80 degrees C (accuracy 0.5 C), humidity 0-100% (accuracy 2%). Dimensions 28x13x10mm, mounting hole diameter 2.6mm. Pins: VCC, GND, DO. Recommended reading interval 2s. ### DC Voltage Sensor 0-25V, 3.3-5V - Page: https://sigmanortec.ro/en/dc-voltage-sensor-0-25v-33-5v - Details: https://sigmanortec.ro/en/llms/p/673.md - Price: 3.76 RON - Availability: In stock; 1-2 zile - Reference: 22106 · EAN: 5944442515652 - Specifications: Supply Voltage: 3.3 V; Maximum Input Voltage: 5 V; Input Voltage: 0-25 V; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English. DC voltage sensor module for measuring direct voltages between 0-25V. Powered at 3.3-5V, it offers a resolution of 0.00489V and a minimum detectable voltage of 0.02445V. Compact dimensions of 25 x 13 mm, with an S pin for analog signal output to an Arduino or other compatible development board. Can be paired with an I2C LCD display to show the voltage in real time. ### HC-SR04 ultrasonic sensor, distance 2–450 cm, 5V - Page: https://sigmanortec.ro/en/ultrasonic-sensor-hc-sr04 - Details: https://sigmanortec.ro/en/llms/p/674.md - Price: 8.13 RON - Availability: In stock; 1-2 zile - Reference: 22017 · EAN: 5946598261001 HC-SR04 ultrasonic sensor, compatible with Arduino, used for distance measurement and obstacle detection in robotics or automation projects. Operates at 5V, covers a range of 2 cm to 450 cm, with an accuracy of up to 0.3 cm. Connects via Trigger and Echo pins for easy integration into circuits. ### Ultrasonic Sensor HC SR-04P 3-5.5V - Page: https://sigmanortec.ro/en/ultrasonic-sensor-hc-sr-04p-3-55v - Details: https://sigmanortec.ro/en/llms/p/675.md - Price: 10.14 RON - Availability: In stock; 1-2 zile - Reference: 33282 · EAN: 5946482119739 - Specifications: tension: AD; Supply Voltage: 3 V; Maximum Input Voltage: 5.5 V HC SR-04P ultrasonic sensor, an upgraded version of the HC-SR04, DC supply voltage from 3 V to 5.5 V. Used for distance measurement and obstacle detection, compatible with Arduino and other development boards. Detection range 2-400cm, effective angle ### Soil moisture sensor, hygrometer - Page: https://sigmanortec.ro/en/soil-moisture-sensor-hygrometer - Details: https://sigmanortec.ro/en/llms/p/676.md - Price: 4.15 RON - Availability: In stock; 1-2 zile - Reference: 22085 · EAN: 5946730579711 Soil moisture sensor (hygrometer) compatible with Arduino and other development boards. Provides analog (AO) and digital (DO, 0 and 1) output, uses the LM393 comparator chip and operates at VCC 3.3V-5V. PCB dimensions: 30 x 15 mm, sensor dimensions: 60 x 20 mm. Includes a dupont cable for connection. ### IR line tracking sensor, digital - Page: https://sigmanortec.ro/en/ir-line-tracking-sensor-digital - Details: https://sigmanortec.ro/en/llms/p/677.md - Price: 6.05 RON - Availability: In stock; 1-2 zile - Reference: 22111 · EAN: 5948487346066 Infrared line tracking sensor with digital output, based on the TCRT5000 with a maximum detection distance of 10mm. The 74HC14D IC improves noise immunity. Powered at 5VDC, dimensions 35 x 10 mm. Compatible with Arduino and other development boards, suitable for line follower robots and black-white contrast detection. Reference 22111. ### UV sensor, 200-375Nm, 3.3-5V - Page: https://sigmanortec.ro/en/uv-sensor-200-375nm-33-5v - Details: https://sigmanortec.ro/en/llms/p/678.md - Price: 29.86 RON - Availability: In stock; 1-2 zile - Reference: 33096 · EAN: 5948509717676 - Specifications: tension: AD; Supply Voltage: 3.3 V; Maximum Input Voltage: 5 V UV sensor, reference 33096, compatible with Arduino and other development boards. Detects UV radiation in the 200-375 nm range, with analog output 0-1V. Supply voltage 3.3-5V, accuracy ±1 UV Index, operating temperature -20 - 85°C, dimensions 19.8 x 15 mm. Suitable for UV monitoring and weather or IoT projects. ### IR obstacle sensor, 3.3-5V - Page: https://sigmanortec.ro/en/ir-obstacle-sensor-33-5v - Details: https://sigmanortec.ro/en/llms/p/657.md - Price: 3.22 RON - Availability: In stock; 1-2 zile - Reference: 22015 · EAN: 5942857667454 - Specifications: Input Voltage: 3.3 - 5 V IR sensor module for obstacle avoidance, compatible with Arduino and other development boards. Operates at 3.3-5V, providing a digital signal on the OUT pin when an object is detected, confirmed by an onboard LED. Detection distance is adjustable via potentiometer between 0-20cm, with a detection angle of 35 degrees. Suitable for robots, automation and proximity projects. ### Optical Sensor CNY70 - Page: https://sigmanortec.ro/en/optical-sensor-cny70 - Details: https://sigmanortec.ro/en/llms/p/658.md - Price: 3.63 RON - Availability: In stock; 1-2 zile - Reference: 33314 · EAN: 5943053488621 The CNY70 optical sensor (ref. 33314) combines an infrared LED and a phototransistor in a compact housing, suitable for detecting proximity or black-white contrast. It provides a fast response and stable signal at short distances, mounts easily on PCB, and is used in line following, pulse counting or edge detection applications in automation and robotics projects. ### TCRT5000 optical sensor, reflective - Page: https://sigmanortec.ro/en/tcrt5000-optical-sensor-reflective - Details: https://sigmanortec.ro/en/llms/p/659.md - Price: 3.55 RON - Availability: In stock; 1-2 zile - Reference: 33370 · EAN: 5947866618664 Reflective optical sensor TCRT5000, TCRT5000L, combining an infrared LED and a phototransistor, with an analog output that varies according to reflection. Optimal operating distance 2.5 mm, emission wavelength 950 nm, typical output current 1 mA. Includes a filter for ambient light. Suitable for surface detection and line-following robots, distinguishing white from black surfaces. ### Dust particle sensor, GP2Y1014AU0F, 5V - Page: https://sigmanortec.ro/en/dust-particle-sensor-gp2y1014au0f-5v - Details: https://sigmanortec.ro/en/llms/p/660.md - Price: 45.44 RON - Availability: In stock; 1-2 zile - Reference: 33129 · EAN: 5945827313832 - Specifications: Input Voltage: 5 V Sensor for monitoring fine dust, pollen or smoke particles in Arduino projects and other development boards, operates at 5V and has analog output for fast integration, good sensitivity for air quality measurements and stable response, low current with peaks up to 20mA. Comes with cable with connector, 220uF capacitor and 150 ohm resistor for easy connection. Particle and dust sensor, compatible with Arduino and other development boards, which can be used to detect fine particles of dust, pollen, smoke particles, and so on. It uses a SAHRP sensor and comes with a cable with a connector, a 16V 220uF capacitor and a 150 ohm resistor. Specifications: Supply voltage: 5VDC … ### PIR motion sensor, HC-SR501 - Page: https://sigmanortec.ro/en/pir-motion-sensor-hc-sr501 - Details: https://sigmanortec.ro/en/llms/p/661.md - Price: 7.93 RON - Availability: In stock; 1-2 zile - Reference: 22148 · EAN: 5945909452350 PIR motion sensor HC-SR501 for detecting movement indoors, suitable for automation, alarms or lighting control. Power supply 5-20VDC, current consumption 65mA, detection angle over 120 degrees, range up to 7 m. Delay time adjustable between 0.8 and 18 seconds, High or Low output selectable via jumper. Operating temperature -15 - +70 degrees, dimensions 32 x 24 mm. ### Atmospheric pressure, temperature sensor BMP180 - Page: https://sigmanortec.ro/en/atmospheric-pressure-temperature-sensor-bmp180 - Details: https://sigmanortec.ro/en/llms/p/663.md - Price: 4.51 RON - Availability: In stock; 1-2 zile - Reference: 22149 · EAN: 5944797158115 Module with Bosch BMP180 sensor for measuring atmospheric pressure and temperature, compatible with Arduino and other development boards. Allows altitude estimation with 1 m accuracy based on pressure variations. Supply voltage 1.8-3.6VDC, I2C interface at 3.5Mhz, measurable pressure 300-1100hPa, resolution 0.03hPa, noise 0.02hPa. Dimensions: 14 x 22 mm. ### Vacuum pressure sensor - Page: https://sigmanortec.ro/en/vacuum-pressure-sensor - Details: https://sigmanortec.ro/en/llms/p/664.md - Price: 13.98 RON - Availability: In stock; 1-2 zile - Reference: 22166 · EAN: 5946560184833 - Specifications: Input Voltage: 5 V The MD-PS002 vacuum pressure sensor is ideal for monitoring pressure in projects with Arduino and other development boards, offering measurement from absolute vacuum up to 150 kPa. It operates at 5VDC, is easy to integrate into industrial and electronic applications, and is suitable for control, automation, and testing in pneumatic systems. The MD-PS002 pressure sensor is a compact piezoresistive Wheatstone bridge transducer based on MEMS technology, designed for the precise measurement of absolute pressure in air and non-corrosive gases. ### Gesture proximity sensor, ambient light, APDS-9930, 3.3V - Page: https://sigmanortec.ro/en/gesture-proximity-sensor-ambient-light-apds-9930-33v - Details: https://sigmanortec.ro/en/llms/p/665.md - Price: 9.91 RON - Availability: In stock; 1-2 zile - Reference: 33147 · EAN: 5942263360758 - Specifications: Input Voltage: 3.3 V Module with APDS-9930 for ambient light measurement and proximity detection, ideal for Arduino projects and compatible boards, operates at 3.3V and communicates quickly via I2C, offers up to 16 bit resolution for precise readings, includes programmable threshold interrupt and low power mode for minimal consumption between measurements. Gesture proximity sensor, ambient light CJMCU9930 APDS 9930, compatible with Arduino and other development boards. This sensor works at a logic voltage of 3.3V, which is why it is necessary to use a logic level converter if you use 5V microcontrollers. ### Inductive proximity sensor SN04-N, NO, 10-30V, NPN - Page: https://sigmanortec.ro/en/inductive-proximity-sensor-sn04-n-no-10-30v-npn - Details: https://sigmanortec.ro/en/llms/p/666.md - Price: 16.52 RON - Availability: In stock; 1-2 zile - Reference: 33165 · EAN: 5944714204635 - Specifications: tension: AD Inductive proximity sensor SN04-N, NPN, 3-wire, NO operation, supply voltage 10-30VDC, current consumption max 5mA. Detection distance up to 5mm for metallic surfaces, can also detect through thin non-metallic materials. IP67 housing, red LED indicator. Dimensions 18.2 x 17.5 x 34mm, wire length 1m. Brown wire power, blue GND, black output. ### Pulse sensor, heart rate - Page: https://sigmanortec.ro/en/pulse-sensor-heart-rate - Details: https://sigmanortec.ro/en/llms/p/667.md - Price: 15.00 RON - Availability: In stock; 1-2 zile - Reference: 22168 · EAN: 5949249480295 Optical sensor for measuring pulse and heart rate, compatible with Arduino and other development boards. Uses a light emitter, a receiver and an integrated amplifier to detect blood flow variations. Analog output, 3.3-5VDC power supply, compact PCB with 16mm diameter. Requires direct skin contact and shielding from ambient light for proper operation. ### Capacitive hygrometer sensor, soil moisture, 5V, v2.0 - Page: https://sigmanortec.ro/en/capacitive-hygrometer-sensor-soil-moisture-5v-v20 - Details: https://sigmanortec.ro/en/llms/p/644.md - Price: 5.45 RON - Availability: In stock; 1-2 zile - Reference: 33263 · EAN: 5949876275011 - Specifications: Input Voltage: 5V; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English. Capacitive hygrometer sensor for measuring soil moisture, version 2.0. Supply voltage 3.3-5VDC, analog output proportional to moisture, current consumption approximately 5mA, 3 pins, dimensions 98 x 23mm. No exposed metal electrodes, suitable for long-term Arduino projects or irrigation automation. Note: when powered at 5V, output may exceed 3.3V on 3.3VDC boards. ### Inductive proximity sensor, LJ12A3-4-Z/BX, NPN, 6-36V - Page: https://sigmanortec.ro/en/inductive-proximity-sensor-lj12a3-4-z-bx-npn-6-36v - Details: https://sigmanortec.ro/en/llms/p/646.md - Price: 16.24 RON - Availability: In stock; 1-2 zile - Reference: 22210 · EAN: 5946206346182 - Specifications: Maximum Input Voltage: 36; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English. Inductive proximity sensor LJ12A3-4-Z/BX, NPN normally open type, for detecting metal objects. Supply voltage 6-36VDC, detection distance 4mm, M12 housing (11.7mm), 1m cable. Compatible with Arduino and other development boards, commonly used for 3D printer autolevel. ### Light intensity sensor GY-302 BH1750 - Page: https://sigmanortec.ro/en/light-intensity-sensor-gy-302-bh1750 - Details: https://sigmanortec.ro/en/llms/p/647.md - Price: 10.58 RON - Availability: Out of stock - Reference: 33217 · EAN: 5949338051252 - Specifications: Input Voltage: 3.3 - 5 V; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English. GY-302 light intensity sensor with BH1750 chip, compatible with Arduino and other development boards. Supply voltage 3.3-5 V DC, measurement range 0-65535 lx with 1 lux resolution, built-in 16-bit AD converter. Communicates via I2C interface (NXP IIC standard). Dimensions: 18.5 x 14 mm. ### Ambient light sensor TEMT6000 - Page: https://sigmanortec.ro/en/ambient-light-sensor-temt6000 - Details: https://sigmanortec.ro/en/llms/p/649.md - Price: 8.99 RON - Availability: In stock; 1-2 zile - Reference: 22023 · EAN: 5946594337106 Ambient light sensor TEMT6000, compatible with Arduino and other development boards. Provides an analog signal that increases proportionally with light intensity, suitable for automatic lighting control and data logging. Supply voltage: 5VDC, maximum sensitivity at 570nm, detection angle +/- 60 degrees. ### Light sensor, photoresistor - Page: https://sigmanortec.ro/en/light-sensor-photoresistor - Details: https://sigmanortec.ro/en/llms/p/650.md - Price: 3.42 RON - Availability: In stock; 1-2 zile - Reference: 22018 · EAN: 5941804918601 Light sensor with photoresistor for measuring light intensity, compatible with Arduino. Detects the presence of light, with a switching threshold adjustable via potentiometer. Operating voltage 3.3V-5V, fast response and easy integration on development boards. Suitable for automatic lighting, alarms or light control. ### Photosensitive light sensor KY-018 - Page: https://sigmanortec.ro/en/photosensitive-light-sensor-ky-018 - Details: https://sigmanortec.ro/en/llms/p/651.md - Price: 2.81 RON - Availability: In stock; 1-2 zile - Reference: 33167 · EAN: 5948289124817 Photosensitive module KY-018 with photoresistor for measuring light level, compatible with Arduino and other development boards. Integrates a 10k resistor for a voltage divider, providing an analog output signal. Supply voltage 3.3-5VDC, compact PCB mount. Suitable for automation, smart lighting and day-night detection. ### Hall magnetic sensor KY-003 digital - Page: https://sigmanortec.ro/en/hall-magnetic-sensor-ky-003-digital - Details: https://sigmanortec.ro/en/llms/p/652.md - Price: 3.03 RON - Availability: In stock; 1-2 zile - Reference: 33349 · EAN: 5949697267455 Hall magnetic sensor KY-003, digital, used to detect the presence of a magnetic field in projects with Arduino and other development boards. Powered at 5V, digital I/O output, fast response to a magnet, easy to integrate on a breadboard or in compact setups. ### HMC5883L 3-axis magnetometer sensor - Page: https://sigmanortec.ro/en/hmc5883l-3-axis-magnetometer-sensor - Details: https://sigmanortec.ro/en/llms/p/654.md - Price: 35.68 RON - Availability: In stock; 1-2 zile - Reference: 22171 · EAN: 5944971267893 3-axis magnetometer module, reference 22171, model GY-273, used for measuring magnetic field and building a digital compass in Arduino or microcontroller projects. Operates at 3-5VDC supply voltage, uses the QMC5883L chip and communicates via IIC interface. Dimensions: 18 x 13 mm, compact format suitable for applications with limited space. ### Bidirectional voltage current monitor sensor INA219 - Page: https://sigmanortec.ro/en/bidirectional-voltage-current-monitor-sensor-ina219 - Details: https://sigmanortec.ro/en/llms/p/655.md - Price: 11.59 RON - Availability: Out of stock - Reference: 33148 · EAN: 5940949474966 Compact module for precise measurement of voltage, current and power in DC circuits, ideal for battery management, power supplies and industrial projects. Offers bidirectional current measurement, I2C communication for quick integration with Arduino, ESP32 or Raspberry Pi, integrated 0.1 ohm shunt resistor and calibrated values with typical error up to 1% for stable monitoring. INA 219 CJMCU-219 bidirectional current voltage monitor sensor, compatible with Arduino and other development boards. The INA219 sensor module is a high-precision DC current monitor, specially designed for electronic and industrial projects where accurate voltage, current and power measurement are required. ### Water level sensor, liquid - Page: https://sigmanortec.ro/en/water-level-sensor-liquid - Details: https://sigmanortec.ro/en/llms/p/656.md - Price: 1.78 RON - Availability: In stock; 1-2 zile - Reference: 22016 · EAN: 5948782332375 Water/liquid level sensor module, analog type, compatible with Arduino development boards. Operating voltage 3-5V, operating current >20mA, detection area 40mm x 16mm, operating temperature 10-30 degrees Celsius, dimensions 62mm x 20mm x 8mm. Suitable for liquid level measurement in automation and alarm projects. ### RCWL-0516 Radar Doppler Sensor - Page: https://sigmanortec.ro/en/rcwl-0516-radar-doppler-sensor - Details: https://sigmanortec.ro/en/llms/p/634.md - Price: 6.20 RON - Availability: Out of stock - Reference: 22014 · EAN: 5944327769514 - Specifications: tension: AD; Supply Voltage: 4; Maximum Input Voltage: 28 Compact solution for motion detection in automation and security systems, uses microwave radar for better coverage than PIR and can detect through certain materials. Offers 3.3V trigger output, distance and blocking time can be adjusted, and support for CDS photoresistor allows operation conditioned by ambient light. Radar Doppler sensor RCWL-0516, an optimal solution for motion detection , ideal for use in automation and security . Designed to operate at an operating voltage of 3.3V , this sensor with microwave technology offers superior capabilities compared to traditional PIR infrared sensors, ensuring extended coverage and accurate detection. ### Flame sensor 4 pins, Analog, Digital, 3-5V - Page: https://sigmanortec.ro/en/flame-sensor-4-pins-analog-digital-3-5v - Details: https://sigmanortec.ro/en/llms/p/635.md - Price: 5.87 RON - Availability: In stock; 1-2 zile - Reference: 33168 · EAN: 5944363244549 - Specifications: tension: AD; Supply Voltage: 3; Maximum Input Voltage: 5 4-pin flame sensor module, compatible with Arduino and other development boards at 3.3V or 5V. Provides analog and digital output (AO and DO pins), detects IR radiation 760-1100nm at a distance of about 80cm with an 80 degree detection angle. Uses LM393 comparator with 15mA signal current and a potentiometer for sensitivity adjustment. Dimensions: 32 x 14mm. Supply voltage 3-5VDC. ### MQ-2 gas sensor - Page: https://sigmanortec.ro/en/mq-2-gas-sensor - Details: https://sigmanortec.ro/en/llms/p/636.md - Price: 9.73 RON - Availability: In stock; 1-2 zile - Reference: 22131 · EAN: 5947120772286 - Specifications: tension: AD; Input Voltage: 5 VDC MQ-2 gas sensor (reference 22131), powered at 5VDC, used to detect a wide range of gases: GPL, H2, CH4, CO, alcohol, smoke and propane. Provides analog or digital output, covers concentrations of approximately 300 - 1000 ppm, and allows simple monitoring, for example by reading pin A0 and displaying via Serial, suitable for Arduino projects and safety systems. ### MQ-3 Alcohol Ethanol Gas Sensor - Page: https://sigmanortec.ro/en/mq-3-alcohol-ethanol-gas-sensor - Details: https://sigmanortec.ro/en/llms/p/637.md - Price: 15.23 RON - Availability: In stock; 1-2 zile - Reference: 22132 · EAN: 5947650793591 - Specifications: tension: AD; Input Voltage: 5 VDC MQ-3 gas sensor module for detecting alcohol and ethanol vapors, suitable for Arduino projects and safety automation. Supply voltage 5VDC, current draw 150mA. Provides an analog output 0-5V that varies with the detected concentration, plus a digital TTL output with adjustable threshold. Main chips LM393 and ZYMQ, LM393 comparator for simple integration. ### Gas Sensor MQ-4 Methane Natural Gas - Page: https://sigmanortec.ro/en/gas-sensor-mq-4-methane-natural-gas - Details: https://sigmanortec.ro/en/llms/p/638.md - Price: 9.98 RON - Availability: In stock; 1-2 zile - Reference: 22133 · EAN: 5945116496291 MQ-4 gas sensor module for detecting methane and natural gas, based on an SnO2 sensor. Power supply 5VDC, 150mA. Detects concentrations between 300-10000ppm. Provides an analog output 0-5V proportional to concentration and a digital TTL output with adjustable threshold. Easy to integrate into Arduino projects via A0 pin reading, suitable for gas leak monitoring systems. ### Gas Sensor MQ-5 natural gas, LPG, coal smoke - Page: https://sigmanortec.ro/en/gas-sensor-mq-5-natural-gas-lpg-coal-smoke - Details: https://sigmanortec.ro/en/llms/p/639.md - Price: 12.63 RON - Availability: In stock; 1-2 zile - Reference: 22134 · EAN: 5949260054246 MQ-5 gas sensor for detecting natural gas, LPG and coal smoke, suitable for Arduino projects and safety systems. Power supply 5VDC, consumption approx. 150mA. Provides analog output 0-5V proportional to concentration and TTL digital output for thresholds. Good resistance to alcohol and smoke interference. ### Gas Sensor MQ-6 LPG Propane Butane - Page: https://sigmanortec.ro/en/gas-sensor-mq-6-lpg-propane-butane - Details: https://sigmanortec.ro/en/llms/p/640.md - Price: 14.34 RON - Availability: In stock; 1-2 zile - Reference: 22135 · EAN: 5949584258580 MQ-6 gas sensor module for detecting LPG, propane, butane and LNG, suitable for leak monitoring in Arduino projects or industrial systems. Power supply 5VDC, 150mA. Analog output 0-5V proportional to gas concentration and digital TTL output for thresholds. Good resistance to interference from ethanol and smoke, quick integration via analog or digital pin reading. ### Gas sensor MQ-7 Carbon monoxide - Page: https://sigmanortec.ro/en/gas-sensor-mq-7-carbon-monoxide - Details: https://sigmanortec.ro/en/llms/p/641.md - Price: 11.74 RON - Availability: In stock; 1-2 zile - Reference: 22136 · EAN: 5947993441395 MQ-7 gas sensor for detecting carbon monoxide, with a measuring range of 10-1000 ppm CO. Power supply 5VDC, approx. 50mA. Provides an analog output 0-5V (voltage proportional to concentration) and a digital TTL output with a threshold adjustable via potentiometer. Requires preheating for stable readings. Can be used with Arduino or standalone. ### MQ-8 Hydrogen Gas Sensor - Page: https://sigmanortec.ro/en/mq-8-hydrogen-gas-sensor - Details: https://sigmanortec.ro/en/llms/p/642.md - Price: 9.34 RON - Availability: In stock; 1-2 zile - Reference: 22137 · EAN: 5943947744758 The MQ-8 sensor detects hydrogen and is suitable for Arduino projects and industrial monitoring applications. It operates at 5VDC with low power consumption, features an analog output of 0-5V that varies with the detected concentration, and a digital TTL output for thresholds. It is resistant to interference from ethanol, CO2 and other gases for more stable measurements. ### MQ-9 CO Gas Sensor - Page: https://sigmanortec.ro/en/mq-9-co-gas-sensor - Details: https://sigmanortec.ro/en/llms/p/643.md - Price: 13.79 RON - Availability: In stock; 1-2 zile - Reference: 22138 · EAN: 5940764832781 MQ-9 sensor module for detecting carbon monoxide and other combustible gases, suitable for Arduino projects and air quality monitoring systems. Detects 10-1000ppm CO and 10-1000ppm other combustion gases. Power supply 5VDC, approx. 50mA. Analog output 0-5V proportional to concentration and digital TTL output for alarm thresholds. ### BMP280 atmospheric pressure, temperature sensor, 3.3V - Page: https://sigmanortec.ro/en/bmp280-atmospheric-pressure-temperature-sensor-33v - Details: https://sigmanortec.ro/en/llms/p/624.md - Price: 8.91 RON - Availability: In stock; 1-2 zile - Reference: 22027 · EAN: 5941490277693 - Specifications: Input Voltage: 3.3 V; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English. BMP280 (Bosch) sensor module for atmospheric pressure and temperature, 3.3V logic voltage, 1.8-3.3VDC supply. Communicates via I2C (address 0x76/0x77) up to 3.4MHz or SPI up to 10MHz. Temperature range -40C..+85C (±1C accuracy), pressure range 300-1100hPa (±1Pa accuracy). Dimensions 12x15.5mm. Compatible with Arduino, ESP32; a logic level converter is recommended for 5V boards. ### Air quality sensor MQ-135 - Page: https://sigmanortec.ro/en/air-quality-sensor-mq-135 - Details: https://sigmanortec.ro/en/llms/p/625.md - Price: 14.94 RON - Availability: In stock; 1-2 zile - Reference: 22139 · EAN: 5944647993200 MQ-135 air quality sensor module, based on SnO2, whose conductivity changes according to pollution level. Detects ammonia, gasoline vapors, smoke and other harmful gases. Power supply 5VDC, current draw about 50mA. Provides an analog output 0-5V for continuous measurement and a digital TTL output for settable thresholds. Easy to integrate with Arduino and other microcontrollers. ### Electronic scale module, 1Kg sensor - Page: https://sigmanortec.ro/en/electronic-scale-module-1kg-sensor - Details: https://sigmanortec.ro/en/llms/p/626.md - Price: 12.80 RON - Availability: In stock; 1-2 zile - Reference: 33159 · EAN: 5948273581794 Load cell weight sensor type YZC-133, compatible with the HX711 module, capacity 1Kg. Power supply 5-10V, 4 wires (red E+, black E-, green A+, white A-), output signal proportional to applied force. Aluminum construction, dimensions 75 x 12.7 x 12.7mm. Mounted via a screw hole at one end, the opposite end must remain floating; do not press on the white plastic cover. ### TTP223B capacitive sensor - Page: https://sigmanortec.ro/en/ttp223b-capacitive-sensor - Details: https://sigmanortec.ro/en/llms/p/627.md - Price: 4.22 RON - Availability: In stock; 1-2 zile - Reference: 22022 · EAN: 5944550696687 TTP223B capacitive touch sensor module, compatible with Arduino, for touch controls in projects and automation. Supply voltage 2 - 5.5VDC. Response time in fast mode: 60ms, in low power mode: 220ms. After 12 seconds without touch it automatically switches to low power mode for reduced consumption. Dimensions: 24 x 24 x 7.2 mm. ### TCS230 color sensor - Page: https://sigmanortec.ro/en/tcs230-color-sensor - Details: https://sigmanortec.ro/en/llms/p/628.md - Price: 64.47 RON - Availability: In stock; 1-2 zile - Reference: 22005 · EAN: 5946183935041 The TCS230 color sensor module detects color and light intensity, providing a digital output on a frequency that is easy to read. It includes a photodiode array with RGB filters, LEDs for stable measurements, and simple selection of color channels. Powered at 3.3-5 V, it is Arduino compatible and suited for projects and automation. ### TCS3200 color sensor - Page: https://sigmanortec.ro/en/tcs3200-color-sensor - Details: https://sigmanortec.ro/en/llms/p/629.md - Price: 72.88 RON - Availability: In stock; 1-2 zile - Reference: 33161 · EAN: 5946724187632 TCS3200 color sensor module (GY-31TCS230) for detecting and measuring colors, suitable for Arduino projects and automation. Converts light into frequency for stable readings, includes LEDs for constant illumination of the sample and provides a digital interface that is easy to integrate. Allows calibration for better precision. Uses: color identification, sorting and quality control. ### TCS34725 color sensor - Page: https://sigmanortec.ro/en/tcs34725-color-sensor - Details: https://sigmanortec.ro/en/llms/p/630.md - Price: 31.69 RON - Availability: In stock; 1-2 zile - Reference: 33160 · EAN: 5944065880854 TCS34725 color sensor (CJMCU-34725 format) for detecting RGB color tones and ambient light. It integrates an IR filter and LED illuminator for stable readings, communicates via I2C with common microcontrollers, and offers high sensitivity and a wide dynamic range. Useful in automation, robotics and sorting systems. ### ACS712 20A current sensor - Page: https://sigmanortec.ro/en/acs712-20a-current-sensor - Details: https://sigmanortec.ro/en/llms/p/631.md - Price: 7.71 RON - Availability: In stock; 1-2 zile - Reference: 22192 · EAN: 5949654410078 - Specifications: Nominal Current: 20 A; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English. ACS712 current sensor module for measuring AC and DC current, compatible with Arduino and other development boards. Supply voltage 5VDC, with power indicator LED. Maximum measurable current 20A, AC/DC. Dimensions 31 x 13 mm. Nominal current 20 A, input voltage type DC. ### Current sensor ACS712 5A - Page: https://sigmanortec.ro/en/current-sensor-acs712-5a - Details: https://sigmanortec.ro/en/llms/p/632.md - Price: 7.72 RON - Availability: In stock; 1-2 zile - Reference: 22205 · EAN: 5943449947138 - Specifications: Nominal Current: 5 A; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English. ACS712 current sensor module for measuring AC or DC current up to 5A, sending the values to Arduino or other development boards. Powered at 5VDC, with power indicator LED. Suitable for consumption monitoring and protection in electronic projects. Dimensions: 31 x 13 mm. ### Liquid flow meter sensor, G3/4, 1-60L/min - Page: https://sigmanortec.ro/en/liquid-flow-meter-sensor-g3-4-1-60l-min - Details: https://sigmanortec.ro/en/llms/p/633.md - Price: 67.38 RON - Availability: In stock; 1-2 zile - Reference: 22173 · EAN: 5943645005083 Liquid flow meter sensor FS300A with G3/4 connection, measuring water flow between 1 and 60 L/min. Power supply 5VDC, maximum operating current 15mA. Maximum operating temperature 80°C, allowed pressure 1.2 MPa. Outer diameter 26mm, inner diameter 16mm. Compatible with Arduino and other development boards, suitable for automation and water volume measurement projects. ### 16-channel relay with remote control, 12V, 315MHz - Page: https://sigmanortec.ro/en/16-channel-relay-with-remote-control-12v-315mhz - Details: https://sigmanortec.ro/en/llms/p/589.md - Price: 213.31 RON - Availability: Out of stock - Reference: R-33126 · EAN: 5946523192356 - Specifications: Output Type Voltage: Closed-Open Contact; Input Voltage: 12 VDC; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English. 16-channel relay module controlled wirelessly via a 315MHz remote control, powered at 12 VDC, with closed-open contact output type. Pairs using the learn function and supports up to 7A per channel. Offers 3 operating modes: jog (activation while button held), latched (on-off) and toggle (interlock between channels). Suitable for automation, control panels and DIY projects. ### PH Meter 0-14 probe with module - Page: https://sigmanortec.ro/en/ph-meter-0-14-probe-with-module - Details: https://sigmanortec.ro/en/llms/p/510.md - Price: 139.54 RON - Availability: In stock; 1-2 zile - Reference: 33095 · EAN: 5946141144904 Module with probe for measuring the pH of liquids between 0 and 14, compatible with Arduino and other development boards. Supply voltage 5V, current 5-10mA, analog signal output, response time 5S, calibration time 60S, detection temperature range 0-80 C. Module dimensions 42 x 32 x 20 mm. Suitable for pH monitoring of water in aquariums, hydroponics or IoT projects, calibration via potentiometer. ### Wifi module ESP8266 Transceiver, ESP-01 - Page: https://sigmanortec.ro/en/wifi-module-esp8266-transceiver-esp-01 - Details: https://sigmanortec.ro/en/llms/p/466.md - Price: 21.05 RON - Availability: In stock; 1-2 zile - Reference: 33081 · EAN: 5942000026312 ESP8266 WiFi module ESP-01, serial 802.11 b/g/n transceiver, works standalone (2 GPIO) or as a WiFi extension for Arduino via RX/TX. AP, STA, AP+STA modes (set via AT commands), integrated TCP/IP stack, 3.3V supply, 1MB flash. Baud rate 115200bps, current draw ~70mA (max ~300mA, standby ### NRF24L01+PA/LNA wireless module, 1.1Km, 3.3V - Page: https://sigmanortec.ro/en/wireless-module-nrf24l01palna-11km - Details: https://sigmanortec.ro/en/llms/p/467.md - Price: 19.26 RON - Availability: In stock; 1-2 zile - Reference: 33083 · EAN: 5946503102221 - Specifications: Input Voltage: 3.3 V Quickly expand wireless communication between Arduino projects and other boards, with stable transmission up to 1.1 km in open field thanks to the PA+LNA antenna. It operates in the 2.4 GHz band, offers selectable speeds of 250 kbps, 1 Mbps or 2 Mbps and programmable transmit power, simple connection via SPI at 3-3.6 V. The NRF24L01 wireless module with external antenna is an efficient solution for long-range wireless communication, suitable for both hobby projects and industrial applications. Equipped with a power amplifier (PA) and a low-noise amplifier (LNA), the module can transmit data over distances of up to 1100 meters in open field, at a transmission rate of 250 kbps. ### NRF24L01 2.4GHz wireless transceiver module - Page: https://sigmanortec.ro/en/nrf24l01-24ghz-wireless-transceiver-module - Details: https://sigmanortec.ro/en/llms/p/468.md - Price: 10.26 RON - Availability: In stock; 1-2 zile - Reference: 22181 · EAN: 5948237673459 NRF24L01 wireless transceiver module, 2.4GHz band (not wifi), compatible with Arduino and other development boards. Supply voltage 1.9-3.6VDC, communication speed up to 2Mbps, integrated antenna. Compact dimensions 15 x 29 mm, suitable for radio links between microcontrollers. ### Line Tracking Module, 3 Channels, TCRT5000, 5V - Page: https://sigmanortec.ro/en/line-tracking-module-3-channels-tcrt5000-5v - Details: https://sigmanortec.ro/en/llms/p/459.md - Price: 10.56 RON - Availability: In stock; 1-2 zile - Reference: 33299 · EAN: 5946064732479 - Specifications: Input Voltage: 5 V; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English. Module with 3 IR sensors TCRT5000 for detecting a black line on a light background, used in line-following robots and Arduino projects. Provides 3 separate digital outputs L, C, R (left, center, right) via integrated comparators, with status LEDs. Power supply 5V DC. TCRT5000 optical detection distance: 0.2 mm - 15 mm, practical usage distance approx. 1-2 mm. ### 5 Channel Line Tracking Module with Bumper, TCRT5000 - Page: https://sigmanortec.ro/en/5-channel-line-tracking-module-with-bumper-tcrt5000 - Details: https://sigmanortec.ro/en/llms/p/460.md - Price: 15.79 RON - Availability: In stock; 1-2 zile - Reference: 33453 · EAN: 5944714113777 Module with 5 IR sensors TCRT5000 for line-following robots, detects black tracks and provides digital output on each channel with status LED. Integrates a bumper endstop for obstacle contact detection and front IR emitters for distance detection. Power supply 5V, compatible with Arduino and other development boards. PCB dimensions: 130 x 33 x 10mm. ### Line tracking module, QTR-8RC, with 8 IR channels, Analog, 3-5V - Page: https://sigmanortec.ro/en/line-tracking-module-8-channels-analog - Details: https://sigmanortec.ro/en/llms/p/461.md - Price: 15.19 RON - Availability: In stock; 1-2 zile - Reference: 33351 · EAN: 5940212489796 - Specifications: Input Voltage: 3 - 5 V; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English. The 8-channel analog line tracking module, ideal for line robots, accurately detects the path through infrared sensors. It operates at 5V, provides analog outputs that are easy to read by the microcontroller, allows for fine contrast calibration and interpretation, and the QTR8 configuration covers different bandwidths for stable and fast tracking. The QTR-8RC module is an array of 8 infrared reflectance sensors, designed especially for line-following robots, but also perfectly usable as a general proximity or reflectance sensor. On a compact 75 x 12.7 mm board, 8 IR emitter-receiver pairs (IR LED and phototransistor) are mounted, evenly spaced at 9.525 mm (0.375"). ### Sunlight tracking mode - Page: https://sigmanortec.ro/en/sunlight-tracking-mode - Details: https://sigmanortec.ro/en/llms/p/462.md - Price: 36.48 RON - Availability: In stock; 1-2 zile - Reference: 33368 · EAN: 5947320496630 Ideal for automating the orientation of solar panels, this module tracks the light source using two probes and the shadow principle, controlling the motor clockwise or counterclockwise until the lighting is balanced. It is mounted directly on the board, the motor is powered separately, includes a delay to reduce vibrations, operates at 5-5.5V DC with consumption below 1.5A, 15 cm probe cable. Light tracking module (solar light and more), ideal for solar panel projects for their automation. The operating principle is based on the shadow generated by the two sensors, the module trying to find a balance where both sensors receive the maximum amount of light. ### VL53L0X time of flight module - Page: https://sigmanortec.ro/en/vl53l0x-time-of-flight-module - Details: https://sigmanortec.ro/en/llms/p/464.md - Price: 17.04 RON - Availability: In stock; 1-2 zile - Reference: 22150 · EAN: 5949610598062 VL53L0X time of flight module for precise distance measurement using infrared, up to 2 metres. Supply voltage 2.8-5VDC, response time under 30ms, operating consumption 20mW and standby consumption 5uA. Communicates via IIC protocol. Dimensions 13.3 x 10.5 mm. Suitable for robotics, automation and proximity detection in compact spaces. ### WiFi module ESP8266, ESP12-E, AI , Original - Page: https://sigmanortec.ro/en/wifi-module-esp8266-esp12-e-ai-original - Details: https://sigmanortec.ro/en/llms/p/465.md - Price: 21.85 RON - Availability: In stock; 1-2 zile - Reference: 33338 · EAN: 5948902543964 WiFi module ESP8266 based on the original ESP12-E AI, offering 2.4GHz 802.11 b/g/n connectivity and an integrated TCP/IP stack. Features a low-power 32-bit MCU, 10-bit ADC, supports STA/AP/STA+AP modes and WPA/WPA2 security. Supply and logic level 3.3V, deep sleep consumption ### AC current sensor module, 5A, ZMCT103C - Page: https://sigmanortec.ro/en/ac-current-sensor-module-5a-zmct103c - Details: https://sigmanortec.ro/en/llms/p/444.md - Price: 8.88 RON - Availability: In stock; 1-2 zile - Reference: 33170 · EAN: 5948895470438 - Specifications: Nominal Current: 5 A; tension: NEEDLE AC current sensor module ZMCT103C based on a toroidal current transformer for non-invasive measurement of 0-5A AC. Powered by 5V DC, analog output AO centered at ~2.5V and digital output DO with adjustable threshold via onboard potentiometer. Compatible with Arduino, ESP8266, ESP32, STM32. Accuracy ±1%, frequency 50-60Hz, operating temperature -40 to +85 degrees C, dimensions approx. 31x13mm. Suitable for power monitoring and overcurrent protection. ### Sensor Module ECG, EKG, AD8232 Kit - Page: https://sigmanortec.ro/en/sensor-module-ecg-ekg-ad8232-kit - Details: https://sigmanortec.ro/en/llms/p/445.md - Price: 68.03 RON - Availability: In stock; 1-2 zile - Reference: 33257 · EAN: 5949587858640 ECG kit with AD8232 and 3 electrodes, for measuring and visualizing the ECG signal in Arduino projects and other development boards. It effectively filters noise and provides a stable analog signal, includes electrode disconnection detection for more reliable measurements, works with 2 or 3 electrodes for flexibility, very low power consumption, heart rate LED and quick connection via 3.5 mm jack. The module consists of the AD8232 ECG Module (an operational amplifier that attaches to the included sensors) and 3 sensors. The product is compatible with Arduino and other development boards. ### Rain sensor module - Page: https://sigmanortec.ro/en/rain-sensor-module - Details: https://sigmanortec.ro/en/llms/p/446.md - Price: 8.47 RON - Availability: In stock; 1-2 zile - Reference: 22151 · EAN: 5949483054863 Rain sensor module (ref. 22151) for detecting rain and snow, with a 50 x 40 mm PCB board for capturing droplets. Compatible with Arduino and other development boards, includes a connecting cable. Powered at 3-5VDC, with analog output AO for precise measurement and digital output DO as a TTL switching signal for fast switching. Useful in automation and IoT projects. ### SIM800L 2.0 module, GSM, GPRS, Quad-band, with antenna - Page: https://sigmanortec.ro/en/sim800l-20-module-gsm-gprs-quad-band-with-antenna - Details: https://sigmanortec.ro/en/llms/p/447.md - Price: 72.54 RON - Availability: In stock; 1-2 zile - Reference: 33066 · EAN: 5942226842024 Quad-band GSM GPRS module for IoT projects and remote control, compatible with Arduino and other boards, uses MicroSIM and includes external rigid antenna with UFL-SMA cable for stable signal. Offers TTL serial interface and support for SMS, calls and data, works in 850 900 1800 1900 MHz networks, requires external power supply 4.5-5V with current over 1A. Improved version of the SIM800L module, compatible with Arduino and other development boards. This module is compatible with MicroSIM size cards and comes with a rigid external antenna plus UFL to SMA cable, providing stable and high-performance connectivity in GSM Quad-Band 850/900/1800/1900MHz networks. ### CC1101 wireless transceiver module + SMA antenna, 433MHz - Page: https://sigmanortec.ro/en/cc1101-wireless-transceiver-module-sma-antenna-433mhz - Details: https://sigmanortec.ro/en/llms/p/453.md - Price: 33.24 RON - Availability: In stock; 1-2 zile - Reference: 33087 · EAN: 5944732651121 CC1101 wireless module with SMA antenna for RF communications in the ISM band 433MHz, ideal for Arduino and other development boards. Offers programmable frequency 387-464MHz via SPI, stable transmission with CRC and RSSI measurement, support for 2-FSK, GFSK and MSK modes, low standby power with WOR. CC1101 wireless transmission and reception module with SMA antenna compatible with Arduino and other development boards. This module operates in the sub-1GHz bandwidth, 433MHz, and is especially designed for ISM (Industrial, Scientific and Medical) and SRD (Short Range Device). The operating frequency is 433MHz, but it can be programmed to operate at other frequencies in the 387-464MHz range. ### Precision RTC Module, DS1307, I2C, 3.3-5V - Page: https://sigmanortec.ro/en/precision-rtc-module-ds1307-i2c-33-5v - Details: https://sigmanortec.ro/en/llms/p/437.md - Price: 4.99 RON - Availability: In stock; 1-2 zile - Reference: 33042 · EAN: 5944168863785 - Specifications: tension: AD; Supply Voltage: 3.3; Maximum Input Voltage: 5 DS1307 RTC module with I2C interface for precise time and date measurement (hours, minutes, seconds, day, month, year). Power supply 3.3-5.5 VDC, AT24C32 memory chip (32 KB EEPROM), SQ output for square wave signal, 1 Hz update frequency, accurate calendar up to 2100. Supports CR2032 or LIR2032 backup battery (not included). Board dimensions 28 x 28 mm. Compatible with Arduino and other development boards. ### DS3231 I2C Precision RTC Module - Page: https://sigmanortec.ro/en/ds3231-i2c-precision-rtc-module - Details: https://sigmanortec.ro/en/llms/p/438.md - Price: 30.60 RON - Availability: In stock; 1-2 zile - Reference: 33002 · EAN: 5947221414375 DS3231 I2C Precision RTC Module, compatible with Arduino and other development boards. Uses the DS3231M clock chip and AT24C32 memory chip (32K), communicating via I2C interface. Features a built-in temperature sensor and programmable alarm output. Power supply 3.3-5.5VDC, backup battery CR2032 or LIR2032 (rechargeable, not included). Dimensions: 38 x 22 x 14 mm. ### GY-291, ADXL345 3-axis sensor module - Page: https://sigmanortec.ro/en/gy-291-adxl345-3-axis-sensor-module - Details: https://sigmanortec.ro/en/llms/p/439.md - Price: 30.92 RON - Availability: In stock; 1-2 zile - Reference: 33344 · EAN: 5948763339157 GY-291 module with digital 3-axis accelerometer ADXL345 (X, Y, Z) for measuring acceleration, detecting vibration and motion. Supply voltage 3-5VDC, communication via I2C/IIC/SPI, 13-bit resolution, measurement ranges ±2g/±4g/±8g/±16g, frequency range 0.1 Hz-3.2 kHz, operating temperature -40°C to +85°C. Compatible with Arduino and other development boards, dimensions 20 x 20 mm. ### 16-channel capacitive touch sensor module TTP229 - Page: https://sigmanortec.ro/en/16-channel-capacitive-touch-sensor-module-ttp229 - Details: https://sigmanortec.ro/en/llms/p/440.md - Price: 9.78 RON - Availability: In stock; 1-2 zile - Reference: 22170 · EAN: 5945823590640 16-channel capacitive touch sensor module based on the TTP229 chip, compatible with Arduino and other development boards. Supply voltage 2.4-5.5VDC. Allows configuration of output mode, key settings, maximum output time and fast/low power selection. Dimensions 49 x 64.5 mm, suitable for touch panels and automation projects. ### 8CH TTP226 Capacitive Touch Sensor Module - Page: https://sigmanortec.ro/en/8ch-ttp226-capacitive-touch-sensor-module - Details: https://sigmanortec.ro/en/llms/p/442.md - Price: 9.62 RON - Availability: In stock; 1-2 zile - Reference: 33134 · EAN: 5949132873425 The 8-channel TTP226 module adds capacitive touch controls to Arduino projects or other controllers, detects touch even through a shield panel, offers status LEDs for each channel, adjustable sensitivity in 64 steps, and a wide 2-5 V supply. It can work in parallel or serial mode via jumper, reducing connections to just 4 pins. 8-channel numeric keypad module (8ch), TTP226. The module features an indicator LED for each channel, adjustable sensitivity in 64 steps, and an input voltage of 2 to 5.5V. This module detects touch and is useful if you need to add a panel over the keys. ### MicroSD module - Page: https://sigmanortec.ro/en/microsd-module - Details: https://sigmanortec.ro/en/llms/p/410.md - Price: 4.38 RON - Availability: In stock; 1-2 zile - Reference: 22127 · EAN: 5946405725443 Arduino-compatible MicroSD module for reading and writing MicroSD and MicroSDHC cards, suitable for data logging and file storage in embedded projects. Communicates via SPI interface, powered with 5VDC on VCC with an integrated 3.3VDC regulator. Features 6 pins: GND, VCC, MISO, MOSI, SCK, CS, plus 4 M2 mounting holes with a 2.2mm diameter. ### MP3 module mini WTV020 MiniSD card - Page: https://sigmanortec.ro/en/mp3-module-mini-wtv020-minisd-card - Details: https://sigmanortec.ro/en/llms/p/411.md - Price: 16.92 RON - Availability: In stock; 1-2 zile - Reference: 33153 · EAN: 5942818771008 Mini audio module WTV020 for MP3 and WAV playback, with MicroSD MiniSD card reader and 16-bit DAC. Communicates via CLK/DATA or UART232, supports button control and folder organization. Power supply 2.6-3.6VDC, FAT card 32MB-1GB, IC GD3200A. Can operate standalone, powered by battery or microcontroller; compatible with Arduino and other development boards. ### 16-channel multiplexer module - Page: https://sigmanortec.ro/en/16-channel-multiplexer-module - Details: https://sigmanortec.ro/en/llms/p/413.md - Price: 4.76 RON - Availability: In stock; 1-2 zile - Reference: 22165 · EAN: 5947345382499 16-channel multiplexer/demultiplexer module based on the CD74HC4067 chip. Operates at 3-6VDC and supports both analog and digital signals. Channel selection (CHAN00-CHAN15) is done via binary addressing on pins S0-S3, while the EN pin allows fully enabling or disabling the connections. Compatible with Arduino and other development boards, useful for expanding a microcontroller's I/O pins and for multiplexing sensors. ### Stereo FM radio mode - Page: https://sigmanortec.ro/en/stereo-fm-radio-mode - Details: https://sigmanortec.ro/en/llms/p/418.md - Price: 8.63 RON - Availability: In stock; 1-2 zile - Reference: 22202 · EAN: 5947068343487 Stereo FM radio module RDA5807M RRD-102V2.0, compatible with Arduino and other development boards. Supply voltage 2.7-3.6VDC, FM band 76-108MHz, communication via I2C interface. Features a built-in analog and digital synthesizer and provides a direct 32Ω audio output without the need for an additional amplifier. Reference 22202. ### Laser beam receiver module - Page: https://sigmanortec.ro/en/laser-beam-receiver-module - Details: https://sigmanortec.ro/en/llms/p/420.md - Price: 6.66 RON - Availability: In stock; 1-2 zile - Reference: 22174 · EAN: 5944541976200 Ideal for detecting the presence of a laser beam in Arduino projects or other development boards, this receiver offers stable digital response for automation and safety systems. It operates at 5VDC, delivers a HIGH signal upon detection and LOW in the absence of the laser, has maximum efficiency and compact dimensions of 16 x 19 mm for easy integration. Laser diode beam sensor receiver module, compatible with Arduino and other development boards. Power supply voltage: 5VDC Output when laser beam is detected: HIGH Output when laser is not detected: LOW Maximum efficiency Dimensions mm: 16 x 19 ### I2C LCD interface module 1602, 2004 - Page: https://sigmanortec.ro/en/i2c-lcd-interface-module-1602-2004 - Details: https://sigmanortec.ro/en/llms/p/397.md - Price: 5.11 RON - Availability: In stock; 1-2 zile - Reference: 22024 · EAN: 5940501772714 I2C interface module for LCD 1602 or 2004 displays, used to reduce the number of pins occupied by the screen on Arduino or other development boards. It communicates via I2C using only 2 pins and mounts directly on the back of the display, allowing quick connection with reduced wiring. Reference 22024. ### IRF520 module - Page: https://sigmanortec.ro/en/irf520-module - Details: https://sigmanortec.ro/en/llms/p/400.md - Price: 7.97 RON - Availability: In stock; 1-2 zile - Reference: 33264 · EAN: 5940242137438 IRF520 module with MOSFET, compatible with Arduino and other development boards. Allows PWM control of DC loads such as LED strips, power LEDs or motors. Control signal 3.3-5VDC, load voltage 0-24VDC, current under 5A; above 1A a heatsink is required for the mosfet. ### LOra 433MHz transceiver module SX1278 5km - Page: https://sigmanortec.ro/en/lora-433mhz-transceiver-module-sx1278-5km - Details: https://sigmanortec.ro/en/llms/p/404.md - Price: 35.21 RON - Availability: In stock; 1-2 zile - Reference: 33084 · EAN: 5946237689203 The SX1278 LoRa transceiver module provides reliable radio communication between two devices up to 5 km in open field, ideal for telemetry and automation. Compatible with Arduino and other development boards, it offers high sensitivity up to 139 dBm, 20 dBm transmit power and standby consumption below 200 nA. It operates at 3.3 V on the logic pins and supports LoRa and FSK modes. The Lora SX1278 transceiver module allows radio communication between two modules over a distance of 5km in open field. Product compatible with Arduino and other development boards. The module operates at a voltage of 3.3V on the logic pins (requires a logic level converter) Specifications … ### Microphone module, high sensitivity, analog output - Page: https://sigmanortec.ro/en/microphone-module-high-sensitivity-analog-output - Details: https://sigmanortec.ro/en/llms/p/407.md - Price: 12.38 RON - Availability: In stock; 1-2 zile - Reference: 33447 · EAN: 5940727863944 Microphone module with high sensitivity and analog output, suited for measuring sound level in Arduino projects and other development boards. Includes an integrated amplifier with adjustable gain and provides a stable signal for AD conversion. Operating voltage: 5VDC. Signal amplitude: VCC/2. ### Microphone module, sound sensor - Page: https://sigmanortec.ro/en/microphone-module-sound-sensor - Details: https://sigmanortec.ro/en/llms/p/408.md - Price: 4.97 RON - Availability: In stock; 1-2 zile - Reference: 22112 · EAN: 5943746158725 Microphone module, sound sensor (ref. 22112) with integrated microphone, detects the presence of sound and provides a digital output. Operates at 3.3-5VDC, sensitivity adjustable via potentiometer. Suitable for sound-triggered automations such as alarms, lighting or Arduino projects. ### Microphone module, sound sensor, 5V - Page: https://sigmanortec.ro/en/microphone-module-sound-sensor-5v - Details: https://sigmanortec.ro/en/llms/p/409.md - Price: 8.47 RON - Availability: In stock; 1-2 zile - Reference: 33155 · EAN: 5946248967970 - Specifications: Input Voltage: 5 V; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English. Microphone module and sound sensor, 5VDC power supply, with digital output DO that switches High or Low when the sound level exceeds a set threshold. Sensitivity is adjustable via a potentiometer. Suitable for detecting the presence of sound in automation and Arduino projects, with fast response and easy integration into control and monitoring circuits. ### AT24C256 I2C EEPROM module - Page: https://sigmanortec.ro/en/at24c256-i2c-eeprom-module - Details: https://sigmanortec.ro/en/llms/p/374.md - Price: 7.24 RON - Availability: In stock; 1-2 zile - Reference: 33156 · EAN: 5944620361170 The AT24C256 I2C EEPROM module provides non-volatile memory for storing settings and data in microcontroller projects. It communicates via a two-pin I2C interface, has a capacity of 256 Kb, operates at 3.3V or 5V, is compatible with the AT24CXX family and integrates easily on breadboards or in prototypes. ### AT24C256 V2 EEPROM module, I2C - Page: https://sigmanortec.ro/en/at24c256-v2-eeprom-module-i2c - Details: https://sigmanortec.ro/en/llms/p/375.md - Price: 9.68 RON - Availability: In stock; 1-2 zile - Reference: 33352 · EAN: 5941638917733 AT24C256 V2 EEPROM module with I2C interface, used to expand memory in Arduino projects when the ATmega's internal EEPROM is not enough. Capacity 256Kbit (32KB), supply voltage 1.8-5V. Retains stored data even without power, and the AT24C256 chip can be replaced for maintenance or upgrade. ### 433MHz transmitter/receiver module - Page: https://sigmanortec.ro/en/433mhz-transmitter-receiver-module - Details: https://sigmanortec.ro/en/llms/p/376.md - Price: 6.59 RON - Availability: Out of stock - Reference: R-22140 · EAN: 5946339826360 RF 433MHz set consisting of a receiver and transmitter for wireless control in DIY projects and automation. The receiver operates at 5VDC, frequency 433.92MHz, sensitivity -105dB, dimensions 30 x 14 x 7 mm. The transmitter is powered at 3.5-12VDC, dimensions 19 x 19 mm, range between 20 and 200 meters depending on voltage and environment. ### Gyro and accelerometer module, 3 axes, GY-521, original IC - Page: https://sigmanortec.ro/en/gyro-and-accelerometer-module-3-axes-gy-521-original-ic - Details: https://sigmanortec.ro/en/llms/p/379.md - Price: 25.36 RON - Availability: In stock; 1-2 zile - Reference: 22108 · EAN: 5941529840058 GY-521 module with original MPU-6050 IC, integrating a 3-axis accelerometer and gyroscope. I2C communication (SDA/SCL), 3V-5V power supply via internal LDO regulator, 16-bit resolution. Accelerometer range ±2g/±4g/±8g/±16g, gyroscope ±250 to ±2000°/s. Pin pitch 2.54mm, dimensions 21 x 15mm, PCB with gold-plated finish. Suitable for robotics, drones and tilt detection. ### NEO6MV2 GPS module - Page: https://sigmanortec.ro/en/neo6mv2-gps-module - Details: https://sigmanortec.ro/en/llms/p/380.md - Price: 30.78 RON - Availability: In stock; 1-2 zile - Reference: 22012 · EAN: 5948383215756 GPS module compatible with Arduino and other development boards, ideal for quickly integrating satellite positioning into DIY and industrial projects. It offers serial communication at 9600 bps, ceramic antenna for stable reception, EEPROM with backup battery for data retention during power outages, and an integrated 3.3V regulator for direct operation at 3-5V. GPS module compatible with Arduino and other development boards, GY-NEO6MV2. The module is perfect for projects where implementing a GPS-based location system is desired. It features a rechargeable battery attached to the board for EEPROM memory. Since it requires signals from satellites, using it indoors is not possible. ### GSM GPRS SIM800L Quad Band module plus antenna - Page: https://sigmanortec.ro/en/gsm-gprs-sim800l-quad-band-module-plus-antenna - Details: https://sigmanortec.ro/en/llms/p/381.md - Price: 45.56 RON - Availability: In stock; 1-2 zile - Reference: 33065 · EAN: 5940149208279 GSM GPRS SIM800L Quad Band module with included antenna, compatible with Arduino and other development boards. SIM800L chip, TTL serial port without need for MAX232, automatic boot, status LEDs indicating signal presence. Input voltage 3.7-4.2V, logic level 3.3V (not 5V tolerant). Requires a voltage divider or logic level converter on the RX pin when used with 5V boards. ### ADS1115 Analog to Digital Converter Module, 16bit - Page: https://sigmanortec.ro/en/ads1115-analog-to-digital-converter-module-16bit - Details: https://sigmanortec.ro/en/llms/p/365.md - Price: 33.35 RON - Availability: In stock; 1-2 zile - Reference: 33149 · EAN: 5947010258272 ADS1115 Analog to Digital Converter Module, 16bit, with I2C interface, compatible with Arduino and other development boards. Provides 16-bit resolution, programmable sample rate 8-860 SPS, 4 single ended inputs or 2 differential inputs, programmable amplifier up to 16X. Supply voltage 2-5VDC, current consumption 150uA, I2C addresses selectable between 0x48 and 0x4B. ### HB100 Radar Doppler Module - Page: https://sigmanortec.ro/en/hb100-radar-doppler-module - Details: https://sigmanortec.ro/en/llms/p/371.md - Price: 18.45 RON - Availability: In stock; 1-2 zile - Reference: 33248 · EAN: 5943808420128 HB100 Radar Doppler Module using 10.525GHz microwaves to detect movement of objects at distances over 20 m. Supply voltage 5VDC (5V ± 0.25V), operating current 60mA max/37mA normal, dimensions 45 x 37mm, weight 8 grams. Integrated antenna with 8dBi gain, vertical angle 36 degrees, horizontal angle 72 degrees, sensitivity -86dBm. An external signal amplifier is recommended for processing the Doppler signal. ### Dual power MOSFET module, 15A, 400W - Page: https://sigmanortec.ro/en/dual-power-mosfet-module-15a-400w - Details: https://sigmanortec.ro/en/llms/p/373.md - Price: 2.83 RON - Availability: In stock; 1-2 zile - Reference: 33540 · EAN: 5949619964035 - Specifications: Power: Over 20W; Maximum Output Current: 15 A; Maximum Controlled Power: 400 W Dual power MOSFET module (33540) with FDD8782 N-Channel transistors, RDS(on) 14.0mΩ at Vgs=4.5V, max VDS 25V. Supports 15A continuous, peaks up to 30A, dissipation up to 400W with adequate cooling. Digital or PWM control 3.3-20V, frequency 0-20kHz. Recommended for applications up to 24VDC: DC motors, LED strips, electromagnets. Dimensions: 34 x 17 x 12 mm. ### Clock Module, RTC, PCF8563 - Page: https://sigmanortec.ro/en/clock-module-rtc-pcf8563 - Details: https://sigmanortec.ro/en/llms/p/352.md - Price: 5.82 RON - Availability: In stock; 1-2 zile - Reference: 33580 · EAN: 5943725493779 RTC clock module based on the PCF8563 chip, with low power consumption and I2C communication. It can be powered at 3.3V or 5V and includes a backup battery to keep time and date. It has a compact size, suitable for integration in Arduino, Raspberry Pi and automation projects. It is presented as an upgrade over the classic DS3231 or DS1307 modules. ### Buzzer mode active - Page: https://sigmanortec.ro/en/buzzer-mode-active - Details: https://sigmanortec.ro/en/llms/p/346.md - Price: 3.63 RON - Availability: In stock; 1-2 zile - Reference: 33162 · EAN: 5942920248917 Active buzzer module (ref. 33162), compatible with Arduino and other development boards. Produces a continuous sound when supplied with 5V and can be controlled directly from a digital pin. Operates on LOW level activation, suitable for alarms and sound notifications. ### Passive Buzzer Mode - Page: https://sigmanortec.ro/en/passive-buzzer-mode - Details: https://sigmanortec.ro/en/llms/p/347.md - Price: 5.03 RON - Availability: Out of stock - Reference: 22152 · EAN: 5949906098757 Passive buzzer module that requires a square wave signal with a frequency of 2k to 5k to operate. It can play varied tones or melodies using the Arduino tone function. Supply voltage 3.3-5VDC, dimensions 33 x 13 mm. It differs from an active buzzer, which generates sound directly when voltage is applied. ### OV2640 2.0MP camera module - Page: https://sigmanortec.ro/en/ov2640-20mp-camera-module - Details: https://sigmanortec.ro/en/llms/p/348.md - Price: 69.71 RON - Availability: In stock; 1-2 zile - Reference: 33350 · EAN: 5940234223347 OV2640 CMOS camera module, 2.0 megapixels (1600x1200 pixels), 3.3V power supply. Sensor size 1/4 inch. Supports JPEG, RGB565, YUV, YCbCr output, with adjustable exposure, white balance, saturation and contrast. Control interface SCCB. Dimensions 27 x 27 x 25mm. Suitable for embedded and IoT projects. ### OV7670 camera module - Page: https://sigmanortec.ro/en/ov7670-camera-module - Details: https://sigmanortec.ro/en/llms/p/349.md - Price: 12.91 RON - Availability: In stock; 1-2 zile - Reference: 33093 · EAN: 5942367493727 OV7670 camera module compatible with Arduino and other development boards, offering VGA resolution 640x480, I2C communication, 3.3V power supply and I/O pins at 2.5-3V. Lens 6mm, 1/6", 18 pins, 8-bit YUV/RGB output. Includes automatic exposure control (AEC), gain control (AGC), white balance (AWB), band filter (ABF) and black-level calibration (ABLC). Dimensions: 30.5 x 30.5 mm. ### SD card mode - Page: https://sigmanortec.ro/en/sd-card-mode - Details: https://sigmanortec.ro/en/llms/p/351.md - Price: 5.20 RON - Availability: In stock; 1-2 zile - Reference: 33228 · EAN: 5946705347499 Arduino-compatible SD card module for reading and writing data on SD and SDHC cards via the SPI interface. Powered at 5VDC on the VCC pin, with an integrated 3.3VDC voltage regulator. Features 6 pins: GND, VCC, MISO, MOSI, SCK, CS and 4 M2 mounting holes with 2.2mm diameter. Suitable for data logging, storing configurations or files in Arduino projects. ### PAM8403 audio amplifier module, with potentiometer, 3W, 2CH - Page: https://sigmanortec.ro/en/pam8403-audio-amplifier-module-with-potentiometer-3w-2ch - Details: https://sigmanortec.ro/en/llms/p/329.md - Price: 9.08 RON - Availability: In stock; 1-2 zile - Reference: 33421 · EAN: 5948707722007 - Specifications: Type: Amplifier; tension: AD; Power: 0 - 20W PAM8403 stereo audio amplifier module with integrated potentiometer for volume control, 2 channels. Power supply 5V DC, output power 3W x 2 channels. Compatible with 4-8 Ohm speakers (4Ohm recommended). Suitable for DIY projects, small speakers and portable systems. ### MP3 amplifier module - Page: https://sigmanortec.ro/en/mp3-amplifier-module - Details: https://sigmanortec.ro/en/llms/p/330.md - Price: 10.89 RON - Availability: In stock; 1-2 zile - Reference: 22194 · EAN: 5943183161920 - Specifications: Type: Amplifier; tension: AD; Power: 0 - 20W; Input Voltage: 5 V; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English. MP3 module with integrated 2W mono amplifier, ideal for Arduino projects and compact audio applications. Plays directly from MicroSD card, powered by 5V or 3.7V battery with MicroUSB charging, offers audio output on gold-plated 3.5 mm jack or connectors, has buttons for play, volume and song change. The 2W MP3 module with integrated amplifier is a compact, self-contained solution for playing audio files directly from a MicroSD card or USB flash drive, without requiring a microcontroller to operate. ### Bluetooth 4.2 BLE audio module, stereo, MH-M18 - Page: https://sigmanortec.ro/en/bluetooth-42-ble-audio-module-stereo-mh-m18 - Details: https://sigmanortec.ro/en/llms/p/333.md - Price: 8.05 RON - Availability: In stock; 1-2 zile - Reference: 33354 · EAN: 5940425595963 Bluetooth 4.2 BLE audio module for low-power stereo streaming, ideal for DIY projects and portable audio equipment. Offers lossless playback and decoding of WAV WMA FLAC APE MP3, dual channel LR output for direct connection to an amplifier, range up to 20 m in open space, support for volume buttons and Mute function for quick control. Bluetooth 4.2 audio module, M18. It is a low power consumption module, supports the latest Bluetooth 4.2, two stereo channels for lossless playback. In open spaces, the distance can reach up to 20 meters. Supports lossless decoding WAV/WMA/FLAC/APE/MP3, dual channel stereo output. ### Bluetooth 4.2 Module JDY-18 - Page: https://sigmanortec.ro/en/bluetooth-42-module-jdy-18 - Details: https://sigmanortec.ro/en/llms/p/335.md - Price: 24.20 RON - Availability: In stock; 1-2 zile - Reference: 33278 · EAN: 5946129761581 Bluetooth 4.2 Module JDY-18, high speed, for quick integration of wireless connectivity into electronic projects. Enables stable communication between microcontrollers and mobile devices, operates at a supply voltage of 1.8 - 3V, has compact dimensions and fast response in data transmission. Supports Bluetooth 4.2 for low power consumption and extended compatibility. ### Bluetooth module BT 06 - Page: https://sigmanortec.ro/en/bluetooth-module-bt-06 - Details: https://sigmanortec.ro/en/llms/p/336.md - Price: 22.09 RON - Availability: In stock; 1-2 zile - Reference: 33082 · EAN: 5949347054909 Bluetooth module BT06 for Arduino and other development boards, establishes a wireless serial SPP connection via UART interface (also supports SPI, I2C). Uses the BK3432 chip, 16MHz frequency, Bluetooth V3.0 + EDR, class 2, PCB integrated antenna. Power supply 3.6-6V, logic level 3.3V; the RX pin does not tolerate voltages above 3.3V, requiring a voltage divider or level converter. ### Bluetooth module HC-05, compatible - Page: https://sigmanortec.ro/en/bluetooth-module-hc-05-compatible - Details: https://sigmanortec.ro/en/llms/p/337.md - Price: 27.04 RON - Availability: In stock; 1-2 zile - Reference: 33274 · EAN: 5941662681976 Bluetooth module for wireless serial communication between Arduino or other boards and phone or PC, works as Master or Slave, fast connection via UART TTL with default setting 9600 bps, supports Data Mode and AT Command Mode for configurations such as name, password and baud rate, 3.6-6V power supply and low consumption, ideal for automation and remote control projects. The HC-05 Bluetooth module, compatible with Arduino and other development boards. This module is used together with development boards for serial communication via Bluetooth. It can be used both as Master and as Slave. This version uses the integrated HC-05 compatible chip, a cheaper but reliable version. ### HC-06 Bluetooth module - Page: https://sigmanortec.ro/en/hc-06-bluetooth-module - Details: https://sigmanortec.ro/en/llms/p/338.md - Price: 30.41 RON - Availability: In stock; 1-2 zile - Reference: 22091 · EAN: 5949287138745 HC-06 Bluetooth module for RS232 serial communication, compatible with Arduino and other development boards. Operates in Slave mode, supply voltage 3.3-6VDC with 3.3V logic, signal range up to 10 m, Bluetooth 2.0 + EDR, default baudrate 9600. Suitable for wireless data transmission and remote control via phone. ### VL53L0X V2 module, flight time, laser distance - Page: https://sigmanortec.ro/en/vl53l0x-v2-module-flight-time-laser-distance - Details: https://sigmanortec.ro/en/llms/p/319.md - Price: 12.68 RON - Availability: In stock; 1-2 zile - Reference: 33553 · EAN: 5943351338048 - Specifications: Model: VL53L0X V2 ToF module with VL53L0X V2 sensor for laser distance measurement up to 2 m, based on the time of flight of light. Includes filters for stable performance under varying ambient light conditions and surface types. Communicates via I2C, compatible with Arduino and other development boards. Supply voltage 2.6-3.5VDC, features Reset and Interrupt pins. Dimensions: 25 x 10.7mm. ### Accelerometer Gyroscope I2C MPU-6500 6 axis module - Page: https://sigmanortec.ro/en/accelerometer-gyroscope-i2c-mpu-6500-6-axis-module - Details: https://sigmanortec.ro/en/llms/p/320.md - Price: 12.00 RON - Availability: In stock; 1-2 zile - Reference: 33130 · EAN: 5946185415978 6-axis module with MPU-6500 for precise motion measurement, ideal for robots, drones or stabilization. Integrates gyroscope and 3-axis accelerometer, communicates via I2C or SPI with Arduino and other boards, has 16 bit AD converter for detailed data, operates at 3-5V with internal regulator, compact format 15x25 mm with 2.54 mm pins. Accelerometer and gyroscope module, MPU6500, compatible with Arduino and other development boards, I2C SPI/IIC interface. Features 3 gyroscope axes plus 3 accelerometer axes. Model: GY-6500 Chip: MPU-6500 Power supply voltage: 3-5V (internal regulator) Communication: Standard IIC / SPI Protocol 16-bit AD converter chip, 16 data output … ### 2x100W TDA7498 amplifier module - Page: https://sigmanortec.ro/en/2x100w-tda7498-amplifier-module - Details: https://sigmanortec.ro/en/llms/p/327.md - Price: 72.95 RON - Availability: In stock; 1-2 zile - Reference: 33347 · EAN: 5946107639963 - Specifications: Type: Amplifier; tension: AD; Power: Over 20W TDA7498 class D audio amplifier module with dual-BTL output 2x100W (Vcc=36V, RL=6ohm, THD 10%) or 80W+80W at 34V/8ohm. Supply voltage 15-34VDC, 24V recommended. Recommended speaker impedance 8 ohm; using 4 ohm speakers may damage the module. 4 fixed gain steps (25.6-37.6dB), short-circuit and over-temperature protection, Normal, Standby and Mute modes. Suited for home theater and active speakers. ### LM386 audio amplifier module, 5 12VDC - Page: https://sigmanortec.ro/en/lm386-audio-amplifier-module-5-12vdc - Details: https://sigmanortec.ro/en/llms/p/328.md - Price: 5.01 RON - Availability: In stock; 1-2 zile - Reference: 33146 · EAN: 5945174375224 - Specifications: Type: Amplifier; tension: AD; Power: 0 - 20W; Supply Voltage: 5; Maximum Input Voltage: 12 Mono audio amplifier module based on the LM386, reference 33146. Amplifies the audio signal up to 200x to drive small speakers. Operates at 4-12VDC, features an onboard potentiometer for gain adjustment and a status LED. Output power: 325mW at 6V, 500mW at 9V. It is a signal amplifier and does not deliver real 20W power. ### LED warning light, red, 12V - Page: https://sigmanortec.ro/en/led-warning-light-red-12v - Details: https://sigmanortec.ro/en/llms/p/307.md - Price: 28.23 RON - Availability: In stock; 1-2 zile - Reference: 33387 · EAN: 5943606431500 - Specifications: Input Voltage: 12 V Red LED strobe light for clear visual signaling of moving or working equipment, 12VDC power supply, flashing mode for increased visibility, compact body 73 x 43.5 mm without base. Quick to mount with included kit, screws and two bases, one with self-adhesive pad and one for screw fixing. Strobe light (beacon), red color, 12V power supply. The kit includes screws and 2 bases, one with a self-adhesive pad, the other for screw mounting. The light is ideally used as a visual signal for moving equipment or equipment in operation. Specifications: Power supply voltage: 12VDC Light source: LED Light mode: flashing Dimensions mm: 73 x 43.5mm (without base) ### 8x8 LED matrix, MAX7219, Red, SMD - Page: https://sigmanortec.ro/en/8x8-led-matrix-max7219-red-smd - Details: https://sigmanortec.ro/en/llms/p/314.md - Price: 7.95 RON - Availability: In stock; 1-2 zile - Reference: 33557 · EAN: 5947535777661 - Specifications: Model: MAX7219 8x8 LED matrix with red SMD LEDs and MAX7219 driver, reference 33557. Features 64 LEDs with 3mm pixel size, 32x32mm active display area, 5V power supply and control via SPI interface. Allows brightness adjustment across 16 levels, a power-saving mode and cascading of multiple modules for extended displays. Compatible with Arduino, ESP32, ESP8266, STM32, Raspberry Pi and other SPI-capable platforms. ### Electret microphone capsule - Page: https://sigmanortec.ro/en/electret-microphone-capsule - Details: https://sigmanortec.ro/en/llms/p/317.md - Price: 1.21 RON - Availability: In stock; 1-2 zile - Reference: 22207 · EAN: 5948350963697 Electret microphone capsule with 2 terminals, suitable for Arduino projects and other development boards. Converts sound into an electrical signal, useful for audio detection, simple recording or voice commands. Compact size, low power consumption, good sensitivity for general applications, connects via soldering or on a breadboard. ### LCD 1602 - Page: https://sigmanortec.ro/en/lcd-1602 - Details: https://sigmanortec.ro/en/llms/p/292.md - Price: 13.29 RON - Availability: In stock; 1-2 zile - Reference: 22025 · EAN: 5946211742641 - Specifications: Input Voltage: 5 V LCD 1602 display, 16 characters per 2 lines, 5V supply, HD44780 controller, compatible with Arduino and other development boards. Adjustable blue backlight. Can be used in parallel mode or, with an adapter, in I2C mode (only 4 wires). Module dimensions 80 x 36mm, screen cutout 71 x 24mm, visible screen 64.4 x 14.5mm. Without I2C a 10k potentiometer is required for contrast adjustment. ### LCD 1604 Blue - Page: https://sigmanortec.ro/en/lcd-1604-blue - Details: https://sigmanortec.ro/en/llms/p/293.md - Price: 31.93 RON - Availability: In stock; 1-2 zile - Reference: 33121 · EAN: 5945252538756 LCD 1604 blue display with 16 characters over 4 lines, compatible with Arduino and other development boards. Supply voltage 3.3-5V. Dimensions 86.96 x 60 x 13 mm, visible screen 62.3 x 27.6 mm. ### LCD 2004, Blue Display, 3.3-5V - Page: https://sigmanortec.ro/en/lcd-2004-blue-display-33-5v - Details: https://sigmanortec.ro/en/llms/p/294.md - Price: 34.24 RON - Availability: In stock; 1-2 zile - Reference: 33092 · EAN: 5942321764474 - Specifications: Input Voltage: 3.3 - 5 V; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English. Clearly displays information and menus in Arduino projects and other boards, with 20x4 characters on a blue background and white LED lighting. Operates at 3.3-5V, is compatible with the I2C module to reduce the number of pins used, and the contrast is easily adjusted from the potentiometer or the I2C module. SPLC780D controller, stable operation between -20 and 70C. LCD 2004 Display, compatible with Arduino and other development boards. It displays 20 characters on 4 lines. Display compatible with the i2c module which allows reducing the pins used on the connected development board. Contrast adjustable via potentiometer on the dedicated pin or directly from the i2c module if it is attached. ### LCD + Control + SD Card for Ramps 1.4 - Page: https://sigmanortec.ro/en/lcd-control-sd-card-for-ramps-14 - Details: https://sigmanortec.ro/en/llms/p/295.md - Price: 71.89 RON - Availability: In stock; 1-2 zile - Reference: 22046 · EAN: 5949751684655 LCD panel with controller and SD card reader for 3D printers, compatible with the Ramps 1.4 board. Allows direct operation and monitoring without a PC, easy menu navigation, starting and managing prints from an SD card, clear display of parameters and an interface with encoder and buttons. Connection to Ramps 1.4 is made using the included adapter and cables. ### LCD 0802 8x2 - Page: https://sigmanortec.ro/en/lcd-0802-8x2 - Details: https://sigmanortec.ro/en/llms/p/290.md - Price: 18.13 RON - Availability: In stock; 1-2 zile - Reference: 22204 · EAN: 5946368180075 The LCD 0802 8x2 is a display with 2 rows of 8 characters each, featuring blue backlighting. It is compatible with Arduino and other development boards, as well as with an I2C module for reduced wiring. Dimensions: 58 x 32 x 10 mm. Suitable for displaying messages and measured values in electronic projects. ### LCD 12864, Blue, ST7920 - Page: https://sigmanortec.ro/en/lcd-12864-blue-st7920 - Details: https://sigmanortec.ro/en/llms/p/291.md - Price: 55.72 RON - Availability: In stock; 1-2 zile - Reference: 33122 · EAN: 5945674871936 LCD 12864 graphic display with 128x64 pixel resolution, blue backlight and white text, based on the ST7920 controller. Power supply 5VDC, 6800 4-bit/8-bit parallel or 3-wire SPI interface (selectable via PSB pin), integrated potentiometer for contrast adjustment. Commonly used with Arduino, 3D printers and RAMPS modules. ### FM/AM Radio Kit, DIY - Page: https://sigmanortec.ro/en/fm-am-radio-kit-diy - Details: https://sigmanortec.ro/en/llms/p/273.md - Price: 37.62 RON - Availability: In stock; 1-2 zile - Reference: 33375 · EAN: 5948418485291 Build yourself an AM/FM radio for learning and DIY projects, the kit integrates CD9088 for FM reception and AM7642 for AM reception, offers searching and listening to stations in the two bands, is powered by 3VDC with 2 AA batteries, is ideal for electronics experiments and developing assembly skills. The CF210SP kit is a dual-band radio receiver, capable of receiving both FM and AM stations, ideal for electronics enthusiasts and students who want to learn through practice how a complete radio receiver works. The kit is delivered with all the components necessary for assembly and includes a printed circuit board (PCB), on which the values and positions of each component are clearly marked. ### Relay kit with ESP8266, ESP-01 - Page: https://sigmanortec.ro/en/relay-kit-with-esp8266-esp-01 - Details: https://sigmanortec.ro/en/llms/p/274.md - Price: 22.98 RON - Availability: In stock; 1-2 zile - Reference: 33410 · EAN: 5944779801473 Relay kit with 5V relay and ESP8266 ESP-01 WiFi module mounted directly on the socket. Includes a built-in 5V-3.3V step-down converter for powering the ESP, relay controlled via GPIO0 with active LOW activation. The ESP-01 supports Station and Access Point modes, UART communication for configuration and programming. Compact solution for WiFi automation and remote control of loads, suitable for smart home and IoT projects. ### Led audio indicator kit LM3915 - Page: https://sigmanortec.ro/en/led-audio-indicator-kit-lm3915 - Details: https://sigmanortec.ro/en/llms/p/262.md - Price: 17.45 RON - Availability: In stock; 1-2 zile - Reference: 33075 · EAN: 5941113661427 DIY VU meter kit based on the LM3915, showing audio signal level via 10 LEDs that light up progressively according to volume. Comes with unsoldered components for assembly, operates at 9-12VDC, with a 62 x 57mm PCB and a socket for the IC. LEDs may be round or rectangular depending on the batch. The IC has an orientation marking that must match the PCB. ### Acoustic control switch kit, clap switch, 5V, ICSK050A - Page: https://sigmanortec.ro/en/acoustic-switch-kit-icsk050a-kit - Details: https://sigmanortec.ro/en/llms/p/263.md - Price: 18.15 RON - Availability: In stock; 1-2 zile - Reference: 33383 · EAN: 5944555189191 - Specifications: Input Voltage: 5VDC; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English. Acoustic control switch kit (clap switch) ICSK050A, 5VDC supply. Bistable output toggles on each clap: HIGH (5V) on first detection, LOW on second. Electret microphone, two-stage amplifier (Q1,Q2), bistable flip-flop circuit (Q3,Q4), status LED, maximum sensitivity around 3kHz. Output on J2 connector, suitable for a 5V relay module or a microcontroller digital input. ### Photoresistor (5537) 5mm - Page: https://sigmanortec.ro/en/photoresistor-5537-5mm - Details: https://sigmanortec.ro/en/llms/p/206.md - Price: 1.69 RON - Availability: In stock; 1-2 zile - Reference: 33359 · EAN: 5948589024077 Photoresistor type 5537, 5mm diameter, used to detect light intensity in electronic projects and automation. Maximum voltage 150VDC, maximum power 150mW, spectral sensitivity peak at 540nm. Light resistance (10 lux) 18-50 Kohm, dark resistance 2 Mohm. Response time 20ms rise and 30ms fall. ### Wired optical endstop - Page: https://sigmanortec.ro/en/wired-optical-endstop - Details: https://sigmanortec.ro/en/llms/p/168.md - Price: 8.47 RON - Availability: In stock; 1-2 zile - Reference: 22213 · EAN: 5940920792416 Wired optical endstop for 3D printers and CNC, based on the TCST2103 sensor (infrared optical barrier, 3.1mm slot). Features 3 pins (S, V, G), digital output, 5V supply and an 800mm cable with connector included. Compatible with Arduino UNO/Nano/Mega and control boards such as RAMPS 1.4, MKS, Melzi, used for home detection and limiting travel on X/Y/Z axes. ### Display Color 1.8 inch, TFT LCD - Page: https://sigmanortec.ro/en/display-color-18-inch-tft-lcd - Details: https://sigmanortec.ro/en/llms/p/140.md - Price: 40.62 RON - Availability: In stock; 1-2 zile - Reference: 33040 · EAN: 5947232678612 1.8 inch color TFT LCD display, compatible with Arduino and other development boards, based on a-TFT technology. Resolution 128RGB x 160 pixels, SPI interface, ST7735S driver, 120° viewing angle, backlight adjustable via dedicated pin (BLK). Outer dimensions 35 x 56 x 3.45 mm, weight 9.6 g, operating temperature -20°C to +70°C. Suitable for displaying sensor data and simple graphical interfaces. ### 3.5 inch HDMI Display, Touchscreen, for Raspberry Pi 4 - Page: https://sigmanortec.ro/en/35-inch-hdmi-display-touchscreen-for-raspberry-pi-4 - Details: https://sigmanortec.ro/en/llms/p/141.md - Price: 211.47 RON - Availability: In stock; 1-2 zile - Reference: 33572 · EAN: 5946221421604 Compact 3.5 inch screen with HDMI connection, ideal for interfacing and monitoring on Raspberry Pi 4, touchscreen support via pin header and installed driver. Also works with PC, consoles or DVR via HDMI, with clear display at 480x320 and software configuration up to 1920x1080 at 60Hz. Includes HDMI adapter for mounting directly over Pi 4. Display for Raspberry Pi 4 with touch and the possibility to connect via HDMI socket, which can also be used with other devices such as PCs, consoles, DVRs, and practically anything with an HDMI output (touch support is only available via the header, not HDMI). ### LED digital display 0.56" 1 digit 7 segments - Page: https://sigmanortec.ro/en/led-digital-display-056-1-digit-7-segments - Details: https://sigmanortec.ro/en/llms/p/142.md - Price: 2.42 RON - Availability: In stock; 1-2 zile - Reference: 33016 · EAN: 5944025312807 Digital LED display, 0.56 inch, 1 digit, 7 segments, common cathode, red color (may vary by batch). It has 10 pins, operates at 5VDC and supports a maximum current of 40mA per segment, with a series resistor of at least 220 ohm per segment. Compatible with development boards such as Arduino. Reference 33016. ### LED digital display 0.56" 2 digits, 7 segments, Red - Page: https://sigmanortec.ro/en/led-digital-display-056-2-digits-7-segments-red - Details: https://sigmanortec.ro/en/llms/p/143.md - Price: 3.03 RON - Availability: In stock; 1-2 zile - Reference: 33012 · EAN: 5940467314829 LED display with 2 digits and 7 segments, common cathode, red color, character size 0.56 inch. Features 10 pins for connection and is compatible with development boards such as Arduino. Suitable for displaying numeric values in electronic projects and control panels. ### Digital LED display 0.56" 3 digits, 7 segments, Red - Page: https://sigmanortec.ro/en/digital-led-display-056-3-digits-7-segments-red - Details: https://sigmanortec.ro/en/llms/p/144.md - Price: 3.63 RON - Availability: In stock; 1-2 zile - Reference: 33013 · EAN: 5941724638474 LED display with 3 digits and 7 segments, common cathode, red color, character size 0.56 inch, connection via 12 pins. Compatible with development boards such as Arduino, suitable for displaying values in electronic projects, control panels or instrumentation. ### LED digital display 0.56" 4 digits, 7 segments, Red - Page: https://sigmanortec.ro/en/led-digital-display-056-4-digits-7-segments-red - Details: https://sigmanortec.ro/en/llms/p/145.md - Price: 3.36 RON - Availability: In stock; 1-2 zile - Reference: 33017 · EAN: 5941488208661 Red LED display with 4 digits and 7 segments, common cathode, character size 0.56 inch. Has 10 pins for connection and is compatible with development boards such as Arduino. Suitable for displaying values in electronic projects, counters and control panels. Reference 33017. ### LCD TFT Display 2.8, Touchscreen, SD Card, 34P, STM32, 3.3-5V - Page: https://sigmanortec.ro/en/lcd-tft-display-28-touchscreen-sd-card-34p-stm32-33-5v - Details: https://sigmanortec.ro/en/llms/p/146.md - Price: 103.32 RON - Availability: In stock; 1-2 zile - Reference: 33123 · EAN: 5941339446082 - Specifications: Supply Voltage: 3.3; Maximum Input Voltage: 5; Input Voltage: 3.3 - 5 V; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English. 2.8 inch color LCD TFT display, 240x320 resolution, ILI9341 driver, resistive touchscreen and integrated microSD slot on the back. 34-pin connector, 3.3-5V power supply, SPI interface with a minimum of 4 IO pins, 65K colors, white LED backlight. Compatible with STM32 ALIENTEK boards (Mini, Elite, WarShip, Explorer, Apollo) and C51 platforms. Not directly connectable to Arduino. ### OLED Display 0.96" I2C IIC Blue - Page: https://sigmanortec.ro/en/oled-display-096-i2c-iic-blue - Details: https://sigmanortec.ro/en/llms/p/147.md - Price: 18.97 RON - Availability: In stock; 1-2 zile - Reference: 33090 · EAN: 5944152268442 Compact 0.96 inch blue OLED screen, ideal for display in Arduino projects and other development boards, connects quickly via I2C with only two data pins, offers 128x64 resolution and visual angle over 160 degrees, has very low consumption and operates at 3V-5V, without backlighting thanks to self-illuminated pixels, with SSD1306 controller. OLED Display 0.96 inch Blue color, compatible with Arduino and other development boards. Ideal for small size projects due to the I2C and IIC communication interface. This display does not require backlighting (it is provided by the pixels) Specifications: High resolution: 128X64 Viewing angle: >160 ° Ultra low power consumption: 0.08W … ### OLED Display 1.3" White 128x64 - Page: https://sigmanortec.ro/en/oled-display-13-white-128x64 - Details: https://sigmanortec.ro/en/llms/p/148.md - Price: 39.81 RON - Availability: In stock; 1-2 zile - Reference: 33120 · EAN: 5942501994066 OLED display 1.3" white, resolution 128x64, with SH1106 driver. Connects via I2C using only 2 pins and requires no backlight, resulting in low power consumption. Operates at 3-5VDC, operating temperature -30~70°C. Module dimensions 36 x 31 x 4.1 mm, active display area 34.5 x 19 mm. Compatible with Arduino and other development boards. ### Display OLED IIC I2C 0.91" 128x32 - Page: https://sigmanortec.ro/en/display-oled-iic-i2c-091-128x32 - Details: https://sigmanortec.ro/en/llms/p/149.md - Price: 18.17 RON - Availability: In stock; 1-2 zile - Reference: 22130 · EAN: 5943615559646 OLED display, 0.91" with 128x32 pixel resolution, blue color, no backlight required. Uses the SSD1306 driver and communicates via the IIC I2C interface. Operates at 3.3-5VDC, with GND, VCC, SCL, SDA pins. Low power consumption and good contrast, suitable for displaying text and symbols in microcontroller projects. ### Display 3.5" Ultra HD 320x480 ILI9486/ILI9488 - Page: https://sigmanortec.ro/en/display-35-ultra-hd-320x480-ili9486-ili9488 - Details: https://sigmanortec.ro/en/llms/p/138.md - Price: 127.13 RON - Availability: Out of stock - Reference: R-33549 · EAN: 5949186200062 3.5-inch color TFT display with 320x480 resolution, 65K colors over a 16-bit parallel RGB bus, driver IC ILI9486/ILI9488. Powered at 3.3-5V via integrated regulator, supports SD card, no touch function, screen size 48.96 x 73.44mm, 34 pins. Compatible with ALIENTEK STM32 Mini, Elite, WarShip, Explorer and Apollo boards; not directly attachable to Arduino boards. ### Magnetic Reed Switch, N/O - Page: https://sigmanortec.ro/en/magnetic-reed-switch-n-o - Details: https://sigmanortec.ro/en/llms/p/97.md - Price: 1.86 RON - Availability: In stock; 1-2 zile - Reference: 33391 · EAN: 5947275336890 Magnetic Reed Switch with N/O (normally open) contact, glass capsule, dimensions 2 x 14 mm, total length 45 mm. Switches quickly when a magnet approaches, suitable for position detection and opening monitoring in automation, alarms or industrial equipment. ### Capacitive button TTP223, touch - Page: https://sigmanortec.ro/en/capacitive-button-ttp223-touch - Details: https://sigmanortec.ro/en/llms/p/63.md - Price: 3.03 RON - Availability: In stock; 1-2 zile - Reference: 22153 · EAN: 5946329400310 Capacitive button TTP223 (touch) for open/close commands in electronic projects. Very low power consumption, supply voltage 2.5-5.5VDC. Output configurable as High or Low Level, operation without or with latching by short-circuiting pads A and B. Dimensions: 11.5 x 8 mm, compact format, easy to integrate into enclosures and panels. ### Active buzzer 5v - Page: https://sigmanortec.ro/en/active-buzzer-5v - Details: https://sigmanortec.ro/en/llms/p/72.md - Price: 3.82 RON - Availability: In stock; 1-2 zile - Reference: 22198 · EAN: 5940353170065 - Specifications: tension: AD; Input Voltage: 5 V Active buzzer 5V (ref. 22198, EAN 5940353170065) for acoustic signaling in electronic projects. Emits sound immediately upon application of DC voltage, operates at 5V, does not require a PWM signal or complex driver. Voltage: DC, Input Voltage: 5V. Easily integrates with microcontrollers and 5V power sources, suitable for alarms, confirmations and sound notifications. ### Passive buzzer 5v - Page: https://sigmanortec.ro/en/passive-buzzer-5v - Details: https://sigmanortec.ro/en/llms/p/73.md - Price: 1.45 RON - Availability: In stock; 1-2 zile - Reference: 33442 · EAN: 5943728665654 - Specifications: tension: AD; Input Voltage: 5 V Passive buzzer rated at 5V, with 5 V input voltage and DC supply. Generates variable tones via PWM, offering fast response and clear sound. Compact size for easy integration, mounts via pins on breadboard or PCB. Suitable for audio signaling in Arduino projects, automation and electronics. ### Active piezoelectric buzzer 3-24V HND-2312 - Page: https://sigmanortec.ro/en/active-piezoelectric-buzzer-3-24v-hnd-2312 - Details: https://sigmanortec.ro/en/llms/p/74.md - Price: 8.47 RON - Availability: In stock; 1-2 zile - Reference: 33164 · EAN: 5942208136028 - Specifications: tension: AD; Input Voltage: 3 - 24 V; Model: HND-2312 Active piezoelectric buzzer HND-2312, DC supply, input voltage 3-24 V. Operates directly at this voltage without an external circuit, providing a clear and stable sound for audible signalling. Low power consumption, suitable for battery or industrial power sources. Compact format, easy to integrate onto panels and enclosures, useful for alarms, status confirmations and simple warnings in electronic projects and automation. ### Ultra slim speaker 40mm 8 ohms 0.5W - Page: https://sigmanortec.ro/en/ultra-slim-speaker-40mm-8-ohms-05w - Details: https://sigmanortec.ro/en/llms/p/53.md - Price: 2.80 RON - Availability: In stock; 1-2 zile - Reference: 33209 · EAN: 5946606637613 - Specifications: Power: 0 - 20W Ultra slim speaker with a 40mm diameter, 8 ohms impedance and 0.5W power. Its thin profile allows mounting in tight spaces, suitable for DIY audio projects, toys, alarms and other small electronic devices. The 8 ohms impedance provides wide compatibility with amplifiers. Reference 33209. ### Audio amplifier TDA7297, 2x15W, 12V - Page: https://sigmanortec.ro/en/audio-amplifier-tda7297-2x15w-12v - Details: https://sigmanortec.ro/en/llms/p/13.md - Price: 31.04 RON - Availability: In stock; 1-2 zile - Reference: 33559 · EAN: 5947806119800 - Specifications: Type: Amplifier; tension: AD; Power: 0 - 20W; Input Voltage: 12 V Stereo audio amplifier TDA7297, class AB, 2x15W at 12V, supply voltage range 6-18V DC. Drives speakers with 4-8 ohm impedance, signal-to-noise ratio above 98dB, total harmonic distortion below 0.1%. Compact dimensions 29x33mm, suitable for DIY projects and home audio systems. ### Audio amplifier TDA7498E, 2x160W - Page: https://sigmanortec.ro/en/audio-amplifier-tda7498e-2x160w - Details: https://sigmanortec.ro/en/llms/p/14.md - Price: 160.25 RON - Availability: In stock; 1-2 zile - Reference: 33558 · EAN: 5941886773372 - Specifications: Type: Amplifier; tension: AD; Power: Over 20W Audio amplifier TDA7498E, class D, 2 channels, output power 2x160W at 4 ohms or 2x100W at 8 ohms. Supply voltage DC 15-36V (recommended 32V, 8A). Output impedance 4-8 ohms, efficiency 85%, signal-to-noise ratio > 100dB, total harmonic distortion < 0.01%. Built-in fan for cooling. Suitable for home audio systems, DIY projects and professional audio applications. ### PAM8610 dual channel 10W stereo amplifier - Page: https://sigmanortec.ro/en/pam8610-dual-channel-10w-stereo-amplifier - Details: https://sigmanortec.ro/en/llms/p/17.md - Price: 11.58 RON - Availability: In stock; 1-2 zile - Reference: 33039 · EAN: 5941718073229 - Specifications: Type: Amplifier; tension: AD; Power: 0 - 20W Class D digital stereo amplifier module, ideal for compact audio projects, delivers 2x10W with low distortion and low EMI for clean sound. Operates at 7-15VDC, recommended 12V, offers up to 32dB gain and good SNR, includes pins for power, stereo input, mute and dedicated speaker outputs. Dimensions 30x25mm. Digital stereo amplifier PAM8610 / HCMODU0086 with 2 channels of 10W each, class-D, low THD+N (0.1%), low EMI, offers good PSRR thus high sound reproduction quality. Maximum volume "Gain" set at 32dB. The module pins provide connections for power supply, stereo audio input, mute, left and right speaker. Specifications: Power supply voltage: 7-15VDC (recommended 12VDC, 3A) … ### 2.4GHz antenna, 2.5 dBi, 110mm, plus cable - Page: https://sigmanortec.ro/en/24ghz-antenna-25-dbi-110mm-plus-cable - Details: https://sigmanortec.ro/en/llms/p/18.md - Price: 9.08 RON - Availability: In stock; 1-2 zile - Reference: 33555 · EAN: 5948751860816 Omnidirectional 2.4GHz antenna with 2.5dBi gain, vertical polarization, 50 Ohm impedance and maximum power of 50W. Antenna length 110mm, SMA Male connector. Includes connection cable with MHF connector (2mm diameter, 2mm height) and SMA Female extension connector. Operating frequency 2.4-2.5GHz, operating temperature -40 to 70 C. Suitable for WiFi, IoT and industrial equipment. ### 433MHz helical antenna - Page: https://sigmanortec.ro/en/433mhz-helical-antenna - Details: https://sigmanortec.ro/en/llms/p/19.md - Price: 3.03 RON - Availability: In stock; 1-2 zile - Reference: 22176 · EAN: 5947861273837 The 433MHz helical antenna is a compact RF antenna for applications at 433MHz. It offers a gain of 2.2 dBi, an impedance of 50 ohm, and supports a maximum power of 30 dBm. With a diameter of 5mm, it is suitable for integration into small devices and enclosures, compatible with common RF modules at this frequency. ### GPRS antenna 50mm, SMA male, with IPEX extension - Page: https://sigmanortec.ro/en/gprs-antenna-50mm-sma-male-with-ipex-extension - Details: https://sigmanortec.ro/en/llms/p/20.md - Price: 8.25 RON - Availability: In stock; 1-2 zile - Reference: 33591 · EAN: 5949675027163 Compact 50mm GPRS antenna with SMA male connector and adapter cable from SMA female to IPEX (U.FL). Optimized for the 900/1800 MHz bands, usable with modules such as SIM800L for GSM/GPRS applications. Gain 2 dBi, impedance 50 Ohm, vertical polarization. Compact construction, easy to integrate into projects. ### Wireless Gateway Module ESP32 with Ethernet, Wi-Fi, and Bluetooth, WT32-ETH01 - Page: https://sigmanortec.ro/en/wireless-gateway-module-esp32-with-ethernet-wi-fi-and-bluetooth-wt32-eth01 - Details: https://sigmanortec.ro/en/llms/p/2390.md - Price: 73.42 RON - Availability: In stock; 1-2 zile - Reference: 88265 · EAN: 5941582263344 - Specifications: Model: WT32-ETH01; Main IC: ESP32; Communication interfaces: Wi-Fi, Bluetooth, Ethernet The WT32-ETH01 module is a compact and versatile industrial connectivity solution designed for IoT applications requiring stable communication via cable and wireless simultaneously. At its core is a dual-core Xtensa 32-bit LX6 microcontroller, with integrated 32 Mbit SPI flash memory and 520 KB SRAM, offering sufficient processing power for complex networking and automation applications. The module supports four data interfaces simultaneously (serial port, Wi-Fi, Ethernet, and Bluetooth) which can be combined in pairs for transparent data transmission without complicated configurations. ### Power Mosfet Module, 3D Printers, 12-24V, 25A - Page: https://sigmanortec.ro/en/power-mosfet-module-3d-printers-12-24v-25a - Details: https://sigmanortec.ro/en/llms/p/940.md - Price: 19.07 RON - Availability: In stock; 1-2 zile - Reference: 9129 · EAN: 5940092130757 - Specifications: Supply Voltage: 12; Maximum Input Voltage: 24; Maximum Output Current: 25; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English. Allows control of the 3D printer heated bed from the motherboard signal, but with a stronger external power supply, reducing the stress and temperature of the board and extending its lifespan. Operates at 12-24VDC, supports up to 25A, is compatible with PID control, compact dimensions 50x60 mm for easy installation. External power mosfet for 3D printers, 12VDC or 24VDC voltage, 25A maximum. This transistor module is specially used for the heated bed of the 3D printer to power it from a more powerful external source. In this way, the bed will still receive a signal from the printer's motherboard, but it will be powered externally.