MQ-3 Alcohol, Ethanol, Smoke Gas Sensor


MQ-3 is a highly sensitive gas sensor to alcohol concentrations in the atmosphere. It has low cost and long life with simple drive circuit and is very useful for detectors used in breath analyzer, environmental monitoring, and in safety devices inside vehicles.


  • Operating Voltage: 5 V
  • Main Chip: LM393, ZYMQ-3 Gas Sensor
  • Board Size: 32 x 22 x 27mm

Package Included:

1 x MQ – 3 Ethanol/Alcohol Sensor

40 in stock