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MQ-2 Smoke/LPG/CO Gas Sensor Module

MQ-2 Smoke/LPG/CO Gas Sensor Module
MQ-2 Smoke/LPG/CO Gas Sensor Module

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  • SKU: FR-01-778
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The analog gas sensor - MQ2 is used in gas leakage (like Smoke methane and liquified flammable gas) detecting equipment in consumer and industry markets, this sensor is suitable for detecting LPG, i-butane, Propane, Methane, Alcohol, Hydrogen, and Smoke. It has high sensitivity and fast response time and the sensitivity can be adjusted using the potentiometer.

This is very easy to use low-cost semiconductor Gas sensor Module with analog and digital output. This module uses the MQ2 Smoke & Flammable gas sensor as a gas sensing element. It requires no external components just plug in Vcc & ground pins and you are ready to go.

Using this module you can easily interface MQ2 Smoke & Combustible gas Sensor to any Microcontroller, Arduino, or even Raspberry Pi.


  • Can be used to Measure or detect LPG, Alcohol, Propane, Hydrogen, CO, and even methane.
  • Wide detecting scope
  • Fast response and High sensitivity
  • Good sensitivity to Combustible gas in a wide range
  • Simple drive circuit
  • Stable, long life and low cost
  • Can be used as a digital or analog sensor
  • The Sensitivity of a Digital pin can be varied using the potentiometer

Package Content:

1 x MQ-2 Smoke/LPG/CO Gas Sensor Module

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Analog Output Voltage

0V to 5V

Digital Output Voltage

0V or 5V

Operating Voltage

5 V

Preheat Duration

20 S


3.6 cm


2.1 cm


2 cm

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