MQ3 Gas Sensor Module with Base Board

This alcohol sensor is suitable for detecting alcohol concentration on your breath, just like your common breathalyzer. It has a high sensitivity and fast response time. Sensor provides an analog resistive output based on alcohol concentration. The drive circuit is very simple, all it needs is one resistor. A simple interface could be a 0-3.3V ADC.


  •     5V DC or AC circuit
  •     Requires heater voltage
  •     Operation Temperature: -10 to 70 degrees C
  •     Heater consumption: less than 750mW
  •     16.8mm diameter
  •     9.3 mm height without the pins

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MQ3 Gas Sensor Module with Base Board

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  • Product Code:
  • SKU: 14AC670
  • Availability: In Stock
  • Rs.147.02
  • Ex Tax: Rs.147.02