MQ-3 Alcohol decector sensor Module

SKU: 180819

2.26 2.26 Piece 2.2600000000000002 USD

¥ 16.50

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  • The sensor has a high sensitivity to alcohol vapors (SnO2), and fast response time.

  • The sensor can measure low concentrations of alcohol vapor in the air. The sensor may operate at temperatures ranging from -10 to 50 ° C and consumes about 700mA at 5V.

There are two modifications of the sensor: 

  • Standard - with sensitivity. 

  • With analog and digital outputs - sensor has 2 outputs: digital output is a certain level of gas concentration, or analog output, which gives the actual value of the hydrogen concentration. Sensitivity can be adjusted by a potentiometer. 


  • The sensitivity of the alcohol concentration from 25 ppm (part per million) to 500 ppm. 

  • Operating temperature range from -10 to 50 ° C. 

  • Power 900mA at 5V. 

  • Sensitivity adjustment. 

  • Analog and digital outputs.