MEMS Gas Sensor (CO, Alcohol, NO2 & NH3) - I2C - MiCS-4514

MEMS Gas Sensor (CO, Alcohol, NO2 & NH3) - I2C - MiCS-4514

This is a 3.3/5V compatible MEMS gas concentration sensor from DFRobot.

This sensor supports the detection of various gas concentrations like CO, C2H5OH (Alcohol), H2, NO2, NH3, and integrates various gas concentration conversion formulas in the code to facilitate the testing and use of sensors.

With I2C output and 3.3~5.5V wide voltage input, it is compatible with Arduino, ESP32, Raspberry Pi and other mainstream controllers.

Gravity: MEMS Gas Sensor

Board Overview


  • Support detection of a variety of harmful gas
  • Integrate the calculation formulas of various gas concentration
  • Low power consumption
  • I2C digital output
  • Compatible with the 3.3~5.5V master controller

  • Gas leak detection
  • Gas safety equipment
  • Air environment detection

  • Detection of Physical Quantities: gas concentration of CO,C2H5OH(Alcohol), H2, NO2, NH3, CH4
  • Operating Voltage: 3.3~5.5V DC
  • Power Dissipation: 0.45W(5V)
  • Output Signal: I2C (0~3V)
  • Measuring Range:
             1 – 1000ppm (Carbon monoxide CO)
             0.05 – 10ppm (Nitrogen dioxide NO2)
             10 – 500ppm (Ethanol C2H5OH)
             1 – 1000ppm (Hydrogen H2)
             1 – 500ppm (Ammonia NH3)
             >1000ppm (Methane CH4)
  • Working Temperature: -30~85℃
  • Working Humidity: 5~95% RH(No condensation)
  • Storage Temperature: -40~85℃
  • Lifespan: >2 years (in the air)
  • Circuit Board Size: 27mm* 37mm
  • Mounting Hole Size: inner diameter 3.1mm/ outer diameter 6mm


  • Gravity: MEMS CO, Alcohol, NO2 & NH3 Gas Sensor x1
  • Gravity-4pin I2C Cable x1
  • Write a review

    Please login or register to review
    • Views: 1776
    • Brand: DFRobot
    • Product Code: MEMS Gas Sensor (CO, Alcohol, NO2 & NH3) - I2C - MiCS-4514
    • Availability: In Stock
    • KES 5,000.00

    Tags: MEMS Gas Sensor (CO, Alcohol, NO2 & NH3) - I2C - MiCS-4514

    The Arduino community has come up with the latest revision for the Uno board. It is a beautifully de..
    KES 1,200.00
    The following are the few advantages for NodeMCU that is based on ESP-12E and that is 2.4G wifi deve..
    KES 1,000.00
    Everyone knows and loves the Raspberry Pi, but what if the wireless capabilities only got better? Th..
    KES 7,000.00
    The latest (and by far the greatest!) Raspberry Pi is here! Meet the Raspberry Pi 4 Model B.Key feat..
    KES 15,500.00
    WeMos LOLIN32 V1.0.0 WiFi Bluetooth ESP-32 Based BoardThe WeMos LOLIN32 board is based on ..
    KES 1,400.00
    Here comes the 4th generation Raspberry Pi model B of popular Raspberry Pi family! Compared to ..
    KES 15,000.00
    Model: 6LR61Size: 9vJacket: Aluminium Foil batteryCompliance: CE ROHSCapacity: 270ohm,24h/d,720minut..
    KES 150.00 KES 120.00
    Control the flow of fluid using the flow of electrons! This liquid valve would make a great addition..
    KES 3,000.00 KES 2,200.00
    Specifications Model: MB-102 Dimension: 165mm x 55mm x 10mm Tie Points: 830 Tie Points con..
    KES 200.00 KES 180.00
    The DHT-22 is a low cost humidity and temperature sensor with a single wire digital interface. The s..
    KES 650.00 KES 550.00
    Need some indicators? We are big fans of these diffused red LEDs, in fact we use them exclusively in..
    KES 100.00 KES 40.00
    The ESP8266 WiFi Module is a self contained SOC with integrated TCP/IP protocol stack that can give ..
    KES 300.00 KES 250.00

    The product is currently Out-of-Stock. Enter your email address below and we will notify you as soon as the product is available.