# CO, VOC, NO2, NH3 sensor module, MICS-6814, 5V

- Page: https://sigmanortec.ro/en/co-voc-no2-nh3-sensor-module-mics-6814-5v
- Price: 205.17 RON
- Availability: In stock; 1-2 zile
- Reference: 9674 · EAN: 5947140560108
- Category: Mechatronics and IoT > Sensors and Modules > Gas and Air Quality Sensors
- Specifications: Input Voltage: 5 V; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English.
- Package (shipping data): 0.003 kg
- Updated: 2026-09-14
- Shop: [Sigmanortec.ro](https://sigmanortec.ro/en/llms.txt)
- Prices: RON, VAT included; prices and stock as of 2026-10-22 04:49 (Europe/Bucharest)

## Description

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. The gas sensor uses the MICS-6814, which is a versatile solution for monitoring air quality in various applications, such as detecting harmful gases indoors, monitoring air quality in offices or residential spaces, as well as in industrial applications.
The sensor generates analog values, this means that the CO , NH3 , and NO2 pins will be connected to the analog inputs of the microcontroller used. 5V and GND are used to power the module.
Detection range:
Carbon monoxide (CO): 1 to 1000 ppm (parts per million)
Volatile organic compounds (VOC): 0.02 to 3 ppm
Nitrogen dioxide (NO2): 0.05 to 10 ppm
Ammonia (NH3): 1 to 100 ppm
Specifications:
Supply voltage: 5VDC
Current consumption: 30mA approximately (necessary for heating the sensor)
Sensor: MICS-6814
Interface: Analog, for reading gas concentration values.
Operating temperature: Between -20°C and +50°C.
Dimensions mm: 17 x 14mm