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MQ2 Smoke Sensor Module

MQ2 Smoke Sensor Module

SKU SKU Code: # MM32

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The MQ2 gas sensor is one of the most widely utilized in the MQ sensor series. It's a Metal Oxide Semiconductor (MOS) type Gas Sensor, also known as Chemiresistors because the detection is dependent on a change in the sensing material's resistance when the gas comes into contact with it. Gas concentrations can be sensed using a simple voltage divider network. 


  • The MQ-2 Smoke LPG Butane Hydrogen Gas Sensor Detector Module is useful for gas leakage detection (home and industry). It is suitable for detecting H2, LPG, CH4, CO, Alcohol, Smoke or Propane
  • Both Analog and Digital Output. 
  • The sensitivity of Digital Output can be varied using a potentiometer. 
  • Sensors | Detects or measure Gases | Air quality monitor.
Input voltage DC 5V
Digital Output 0 or 5 volts
Analog output 0 - 5 volts