MQ303A Alcohol Sensor

SKU: VS00123

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MQ303A is semiconductor sensor is for Alcohol detection. It has good sensitivity and fast response to alcohol, suitable for portable alcohol detector.

Technical Specification:

  • Heater voltage: 5V
  • Power: <150mW
  • Diameter: 9.4mm
  • Size: 60mm*90mm*9mm (L*W*H)


  • High sensitivity
  • Fast response and resume
  • Long life and low cost
  • Mini size


  • Portable alcohol detector

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