MQ-3 Alcohol/Ethanol Sensor Module
  • MQ-3 Alcohol/Ethanol Sensor Module

#515: MQ-3 Alcohol/Ethanol Sensor Module


This alcohol sensor is suitable for detecting alcohol concentration on your breath, just like your common breathalyzer.

Product Details

  • Alcohol Detector
  • Size: approx. 32 x 22 x 27mm
  • Main chip: LM393, ZYMQ-3 gas detector
  • Working Voltage: DC 5V
  • Analog output 0 ~ 5v voltage, the higher the concentration, the higher the voltage
  • VCC: positive power supply (5V)
  • GND: power supply is negative
  • DO: TTL switching signal output
  • AO: analog signal output

More detailed information & instructions on MQ Gas Sensors is available at the Arduino Playground:



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MQ-3 Alcohol/Ethanol Sensor Module

Regular price: R43.30
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In Stock: 5