Solid State Relay 5V 2CH Low Level, SSR

In Stoc

2-channel SSR module for silent and fast control of AC loads in Arduino projects, automation and industrial control, 5V power supply, Low Level input with clear switching threshold, supports up to 250VAC and 2A per channel, compact dimensions for easy mounting in boxes and panels.

4.49 €

BMP280 atmospheric pressure, temperature sensor, 3.3V

In Stoc

The module for precise measurement of atmospheric pressure and ambient temperature in low-power projects, operates at 3.3V and is ideal for weather stations, altimeters and environmental monitoring. It offers I2C or SPI communication, good reading stability, compact size and excellent compatibility with Arduino, ESP32 and other development boards.

1.76 €

Air quality sensor MQ-135

In Stoc

Air quality monitoring module, detects ammonia, gasoline vapor, smoke and other harmful gases, based on SnO2 which changes its conductivity depending on the pollution level. It operates at 5V with low consumption, offers 0-5V analog output for continuous measurement and TTL digital output for settable thresholds, easy to integrate with Arduino and other microcontrollers.

2.96 €

Electronic scale module, 1Kg sensor

In Stoc

Load cell type weight sensor, compatible with the HX711 module, ideal for weighing and automation projects, measures up to 1Kg and provides an analog signal proportional to the applied force, 5-10V power supply, 4 wires for quick connection, aluminum construction for stability and good repeatability.

2.53 €

TTP223B capacitive sensor

In Stoc

Capacitive touch module for touch controls in Arduino and automation projects, operates at 2-5.5V DC, offers fast response in fast mode, automatically switches to low power after 12 seconds of no touch for low consumption, compact and easy to integrate into panels, enclosures or prototypes.

1.47 €

TCS230 color sensor

In Stoc

Quickly detects color and light intensity for Arduino and automation projects, providing easy-to-read digital frequency output. Includes photodiode array with RGB filters, LED illumination source for stable measurements, simple color channel selection, and 3.3-5 V power supply for quick integration into prototypes.

12.76 €

TCS3200 color sensor

In Stoc

Color detection and measurement module, ideal for Arduino and automation projects. Converts light into frequency for stable readings, includes LEDs for constant sample illumination, offers easy-to-integrate digital interface and calibration for better accuracy, suitable for color identification, sorting and quality control.

14.43 €

TCS34725 color sensor

In Stoc

Color sensor for precise detection of RGB hues and ambient light, ideal for automation, robots and sorting. Integrates TCS34725 with IR filter and LED illuminator for stable readings, communicates quickly via I2C with popular microcontrollers, offers high sensitivity and good dynamics over a wide range of intensities, compact CJMCU format for easy integration.

6.27 €

ACS712 20A current sensor

In Stoc

The AC and DC current measurement module, ideal for Arduino and other development board projects, quickly transmits the amperage value to the controller for monitoring and control. It operates at 5VDC, has a power LED for easy verification, supports measurement up to 20A and has a compact 31 x 13 mm format for easy integration into assemblies.

1.53 €

Current sensor ACS712 5A

In Stoc

Module for measuring AC or DC current up to 5A and sending values to Arduino or other development boards, 5VDC power supply with presence LED, ideal for monitoring consumption and protection in electronic projects, compact format 31 x 13 mm for easy integration into assemblies.

1.53 €

Liquid flowmeter sensor, G3/4, 1-60L/min

RCWL-0516 Radar Doppler Sensor

In Stoc

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.

1.23 €

Flame sensor 4 pins, Analog, Digital, 3-5V

In Stoc

Compact module for flame detection in Arduino projects and other 3.3V or 5V boards, offers analog and digital outputs for flexible integration, detects IR radiation 760-1100nm up to about 80cm with an angle of 80 degrees, includes LM393 comparator for stable signal and potentiometer for sensitivity adjustment.

1.16 €

MQ-2 gas sensor

In Stoc

Ideal for Arduino projects and safety systems, this sensor detects a wide range of gases such as LPG, H2, CH4, CO, alcohol, smoke and propane. It operates at 5VDC, offers analog or digital output for fast integration, covers concentrations from approximately 300 to 1000 ppm and allows simple monitoring by reading on A0 and displaying in Serial.

1.93 €

MQ-3 Alcohol Ethanol Gas Sensor

In Stoc

Alcohol and ethanol vapor detection module, ideal for Arduino projects and safety automation. It operates at 5V and has low consumption, offers 0-5V analog output with variable level depending on concentration, plus TTL digital output for thresholds, simple integration thanks to the LM393 comparator.

3.02 €

Gas Sensor MQ-4 Methane Natural Gas

In Stoc

Methane and natural gas detection module, ideal for Arduino projects and leak monitoring systems. Operates at 5V, SnO2 sensor with good sensitivity in the range of 300-10000ppm, offers 0-5V analog output proportional to concentration and TTL digital output for settable thresholds, easy to integrate by reading on A0.

1.98 €

Gas Sensor MQ-5 natural gas, LPG, coal smoke

In Stoc

Ideal for Arduino projects and security systems, detects natural gas, LPG and coal smoke quickly and stably. Powered by 5VDC, consumption approx. 150mA, offers 0-5V analog output proportional to concentration and TTL digital output for thresholds, has good resistance to alcohol and smoke interference.

2.50 €

Gas Sensor MQ-6 LPG Propane Butane

In Stoc

MQ-6 based gas detection module for monitoring LPG, propane, butane and LNG leaks in Arduino projects or industrial systems. It operates at 5V, offers 0-5V analog output proportional to concentration and TTL digital output for thresholds, has good resistance to ethanol and smoke interference, fast integration by reading on analog or digital pin.

2.84 €

Gas sensor MQ-7 Carbon monoxide

In Stoc

Detects carbon monoxide in homes and DIY projects, with a measurement range of 10-1000 ppm. Operates at 5V and requires preheating for stable readings. Offers 0-5V analog output for precise value and TTL digital output with adjustable threshold from potentiometer. Can be used with Arduino or standalone.

2.32 €

MQ-8 Hydrogen Gas Sensor

In Stoc

The MQ-8 sensor is ideal for detecting hydrogen in Arduino projects and industrial monitoring applications, it operates at 5VDC with low consumption, has a 0-5V analog output that varies with the detected concentration and a TTL digital output for thresholds, and is resistant to interference with ethanol, CO2 and other gases for more stable measurements.

1.85 €

MQ-9 CO Gas Sensor

In Stoc

Module for detecting carbon monoxide and other combustible gases, ideal for Arduino projects and air monitoring systems. Detects 10-1000ppm CO and 10-1000ppm combustion gases, operates at 5V with low consumption, provides 0-5V analog output proportional to concentration and TTL digital output for alarm thresholds.

2.73 €

Capacitive hygrometer sensor, soil moisture, 5V, v2.0

In Stoc

Ideal for monitoring soil moisture in Arduino projects or irrigation automation, this capacitive sensor offers stable and durable measurement, without exposed metal electrodes. It has an analog output proportional to humidity, operates at 3.3-5V, low consumption of approximately 5mA and a compact 3-pin format, easy to integrate into assemblies.

1.09 €

LJ12A3-4-Z/BX inductive NPN proximity sensor 4mm

Inductive proximity sensor, LJ12A3-4-Z/BX, NPN, 6-36V

In Stoc

NPN inductive proximity sensor for precise detection of metal objects, ideal for autoleveling in 3D printers and Arduino projects. It operates at 6-36VDC, has a detection distance of up to 4mm, NPN normally open output for easy integration, compact M12 housing and 1m cable for quick installation.

3.22 €

Light intensity sensor GY-302 BH1750

In Stoc

Light sensor for precise measurement of illumination in projects with Arduino and other development boards, covers 0-65535 lx with a resolution of 1 lux, operates at 3-5 V, includes a 16-bit AD converter for stable readings, communicates quickly via the I2C interface and has a compact 18.5 x 14 mm format.

2.09 €

Ambient light sensor TEMT6000

In Stoc

Ideal for measuring light levels in Arduino projects and other development boards, it provides an analog signal that increases proportionally to light intensity for automatic lighting control and logging. It operates at 5VDC, has a maximum sensitivity of 570nm and a detection angle of +/- 60 degrees, making it easy to integrate into environmental monitoring applications.

1.78 €

Light sensor, photoresistor

In Stoc

Photoresistor for measuring light intensity in Arduino projects and simple automation, detects the presence of light and switches at the desired threshold adjustable from the potentiometer, operates at 3.3V to 5V, offers fast response and easy integration on development boards, ideal for automatic ignition, alarms or lighting control.

0.68 €

Photosensitive light sensor KY-018

In Stoc

Photosensitive module with photoresistor for measuring light level, ideal for Arduino projects and other development boards. Integrates 10k resistor for voltage divider, providing stable analog signal for reading on analog input. Operates at 3.3-5VDC, compact PCB mounting, suitable for automation, smart lighting and day/night detection.

0.56 €

HMC5883L 3-axis magnetometer sensor

In Stoc

3-axis magnetometer module for measuring the magnetic field and creating a digital compass in Arduino or microcontroller projects, operates at 3-5VDC, uses QMC5883L chip, communicates via IIC for quick integration, compact 18 x 13 mm format suitable for applications with limited space.

7.07 €

Bidirectional voltage current monitor sensor INA219

In Stoc

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.

2.30 €

Water level sensor, liquid

In Stoc

Quickly monitor the level of water or other liquids in Arduino projects, providing stable analog measurement for automation and alarms. It operates at 3-5V, has a 40x16 mm detection area for accurate readings, low consumption over 20 mA and compact dimensions of 62x20x8 mm, easy to integrate into housings and DIY assemblies.

0.35 €

IR obstacle sensor, 3.3-5V

In Stoc

The IR obstacle avoidance module, ideal for Arduino and other boards, detects the proximity of objects and provides a digital signal on the OUT pin, confirmed by the LED on the board. It operates at 3.3-5V, has an adjustable distance via potentiometer up to 20 cm and a detection angle of 35 degrees, suitable for robots, automation and proximity projects.

0.62 €

Optical Sensor CNY70

In Stoc

Ideal for proximity or black-white contrast detection in automation and robotics projects, it includes an infrared LED and phototransistor in a compact housing, offers fast response and stable signal at short distances, mounts easily on PCBs and works reliably in line tracking, pulse counting or edge detection applications.

0.72 €

TCRT5000 optical sensor, reflective

In Stoc

Reflective optical sensor for surface detection and line tracking in robots, combines infrared LED and phototransistor with variable analog output depending on reflection. Works optimally at 2.5 mm, emits at 950 nm, offers typical current 1 mA and includes filter to reduce the influence of ambient light.

0.70 €

Dust particle sensor, GP2Y1014AU0F, 5V

In Stoc

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.

9.00 €

PIR motion sensor, HC-SR501

In Stoc

PIR sensor for indoor motion detection, ideal for automation, alarms or lighting. It operates at 5-20VDC with low consumption, offers a detection angle of over 120 degrees and a distance of up to 7 m, and the delay time is adjustable between 0.8 and 18 seconds, with High or Low output selectable from the jumper.

1.57 €

Atmospheric pressure sensor, temperature BMP180

Atmospheric pressure, temperature sensor BMP180

In Stoc

Bosch BMP180 sensor module for measuring atmospheric pressure and temperature, ideal for Arduino projects and DIY weather stations. Allows altitude estimation with accuracy up to 1 m based on pressure variations, communicates quickly via I2C, operates at 1.8-3.6 V and offers stable high-resolution measurement in a compact 14 x 22 mm format.

0.89 €

Vacuum pressure sensor

In Stoc

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.

2.77 €

Gesture proximity sensor, ambient light, APDS-9930, 3.3V

In Stoc

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.

1.96 €

Inductive proximity sensor SN04-N, NO, 10-30V, NPN

In Stoc

3-wire NPN inductive sensor, ideal for non-contact detection of metal parts in automation and machinery. Switches on proximity up to 5mm and lights up the red LED for visual confirmation. NO operation, NPN output for easy integration at 10-30VDC, IP67 dust and water resistant housing, can also detect through thin non-metallic materials.

3.27 €

Pulse sensor, heart rate

In Stoc

Optical sensor for measuring pulse and heart rate, ideal for Arduino projects and other development boards. It uses an integrated light emitter, receiver and amplifier to detect blood flow variations, offers easy-to-read analog output, operates at 3.3-5V and has a compact 16 mm PCB for quick integration into prototypes.

2.97 €

Waterproof temperature probe sensor DS18B20

In Stoc

Waterproof temperature probe with stainless steel head, ideal for monitoring in humid environments or industrial applications. Works with Arduino and other development boards, communicates via OneWire and requires a 4.7k pull-up resistor on the DATA pin. Measures between -20 and 105°C, has a 1 m cable and 3 wires for easy connection.

1.70 €

Precision Temperature and Humidity Sensor SHT21, GY-21

In Stoc

Ideal for precise temperature and humidity monitoring in IoT and automation projects, this module with SHT21 offers stable and fast measurements, I2C communication for easy integration with Arduino and Raspberry Pi, low consumption for long-term operation, compact breakout format suitable for prototyping and mounting in tight spaces.

9.21 €

DHT11 temperature and humidity sensor, module

DHT11 temperature and humidity sensor, Digital, 3.3-5V

In Stoc

Ideal for environmental monitoring in Arduino and automation projects, this digital sensor measures temperature and humidity with 3.3-5V power supply and stable digital output. It covers 20-95% RH with ±5% accuracy and 0-50°C with ±2°C accuracy, with a compact 32 x 14 mm format, easy to integrate into housings and modules.

1.22 €

DHT22 AM2302 temperature and humidity sensor, original, module

In Stoc

Digital module for precise temperature and humidity measurement, ideal for Arduino projects and other development boards. It operates at 3.3V or 5V, uses original sensor for high stability and accuracy, offers reading on a single digital pin and includes mounting hole for quick integration into cases and panels.

7.80 €

DC Voltage Sensor 0-25V, 3.3-5V

In Stoc

Module for measuring DC voltage between 0 and 25V, ideal for projects with Arduino and other development boards. It operates on 3.3-5V power supply, offers good resolution of 0.00489V for stable readings, simply connects via the S pin to the analog input, has compact dimensions of 25 x 13 mm and can display live voltage together with an I2C LCD.

0.75 €

Ultrasonic sensor HC-SR04

In Stoc

Arduino compatible ultrasonic sensor, ideal for quick distance measurement and obstacle detection in robotics or automation projects. It operates at 5V, covers the range of 2 cm to 450 cm, offers accuracy up to 0.3 cm and simply connects via Trigger and Echo pins for easy integration into assemblies.

1.61 €

Sensors and Modules

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