MQ-2 Hydrogen Gas Sensor Detector Module


In stock

  • Analog output sensor for measuring changes in H2, LPG, CH4, CO, Alcohol, Smoke or Propane
  • Used for Detecting Smoke, Flammable Gas (e.g. LPG, Methanol , Ethanol) by SnO2 Gas Sensitive Materials
  • Operating voltage of 5VDC; adjustable sensitivity using the onboard potentiometer (see datasheet)
  • Easy to use on a breadboard with the included 4-pin header
  • Input Voltage: 5V DC

Additional information

Weight 8 g
Package contents



no warranty on electronic components

  1. Operating Voltage is +5V
  2. Can be used to Measure or detect LPG, Alcohol, Propane, Hydrogen, CO and even methane
  3. Can be used as a Digital or analog sensor
  4. The Sensitivity of Digital pin can be varied using the potentiometer
  5. Long life and low cost
  6. Simple drive circuit


Operating Voltage (VDC) 5
Analog Output Voltage 0V to 5V
Digital Output Voltage 0V or 5V (TTL Logic)
Preheat Duration(sec) 20
Dimensions in mm (LxWxH) 36x20x21
Weight (gm) 8

MQ-2 Hydrogen Gas Sensor Detector Module