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Alcohol Gas Sensor MQ-3

Alcohol Gas Sensor MQ-3

Description: SNS-MQ3 is a sensor module that detects alcohol and gas in the air. It has higher sensitivity to alcohol and lower sensitivity to gas.

Heater voltage 5V, 31 ohm (40mA consumption)


  • Detects alcohol and gas
  • Operating voltage: 5V
  • Operating current: 40mA
  • Both digital and analog output
  • Popular sensor - a lot of examples available for different platforms
  • Port explanation : AO for analog output, DO for digital output, GND for ground, VCC for 5V voltage input


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  • Stock: 9
  • Brand: Olimex
  • Model: OL-SNS-MQ3
Ex Tax: 6.45€
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