MQ-2 Combustible Gas Sensor Module

MQ-2 Combustible Gas Sensor Module


MQ-2 Combustible Gas Sensor: Detects LPG, Propane, Hydrogen, Methane and Other Combustible gases.

View Datasheet

573 in stock

Consider using this sensor for your next project that detects combustible gases such as LPG, Propane, Hydrogen and Methane. This Module makes use of the MQ-2 combustible gas detector chip. Other circuit components such as the LM393 analog comparator chip on this module makes it easy to integrate this module into a project that can detect combustible gases. The Module requires a 5V power supply and provides a digital Logic output (1 or 0) and an analog level output (0-4V). The digital logic output is LOW (0) when no gas is detected but goes HIGH (1) when gas concentration in the environment reaches the set threshold set via a potentiometer on the module. The analog level output provides an output voltage within the range of 0 to 4V based on the concentration of the combustible gas in the environment; 0V for lowest concentration, 4V for maximum concentration.

*The MQ-2 device on this module uses a heating element. After initial power ON, Please wait at least 20 Seconds before reading outputs to ensure data validity .


There are no reviews yet.

Be the first to review “MQ-2 Combustible Gas Sensor Module”

SKU: PG1631 - Need Help? Contact Us Leave Feedback

Categories: , .



  • Sensor Type: Semiconductor
  • Concentration: 300 – 10000ppm (Combustible Gas)
  • Supply Voltage: 5V
  • Current Consumption: 150mA
  • Digital Output: LOW (0.1V) HIGH (5V)
  • Analog Output: 0.1V-0.3V (Normal Concentration) to 4V (Maximum Concentration)