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MQ3 Sensor Only

135.70 (Including GST)

115.00 ( + 20.70 GST)


  1. Power requirements: 5 VDC @ ~165 mA (heater on) / ~60 mA (heater off)
  2. Current Consumption: 150mA
  3. Operating temperature: 14 to 122 °F (-10 to 50°C)
  4. It has a long service life and reliable stability.
  5. DO output: TTL digital 0 and 1 ( 0.1 and 5V)
  6. AO output: 0.1- 0.3 V (relative to pollution), the maximum concentration of a voltage of about 4V

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SKU: RDNA-52.2 Category:

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This MQ-3 Alcohol Detector Gas Sensor is simple to use. MQ-3 Alcohol Detector Module which can sense the presence of Alcohol in the air. This uses our MQ-3 sensor.

 MQ-3 Sensor Pinout:

1H -PinsOut of the two H pins, one pin is connected to supply and the other to ground
2A-PinsThe A pins and B pins are interchangeable. These pins will be tied to Supply voltage.
3B-PinsA pins and B pins are interchangeable. One pin will act as output while the other will be pulled to ground.


Package Includes:

1 x MQ-3 Sensor


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