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Keyestudio EASY plug Analog Alcohol Ethanol Sensor MQ-3 Breath Gas Detection for Arduino STEAM

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This analog gas sensor - MQ3 is suitable for detecting alcohol. It can be used in a Breath analyzer. Also it has high sensitivity to alcohol and low sensitivity to Benzine.
The sensitivity can be adjusted by a blue potentiometer on the sensor.
This module should be used together with EASY plug control board.


  • Connector: Easy plug

  • Power supply: 5V

  • Sensor type: Digital and Analog

  • Simple drive circuit

  • Stable and long service life

  • Quick response and High sensitivity

  • Dimensions: 56mm*20mm*18mm

  • Weight: 7.5g

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