Alcohol gas sensor MQ-3

Alcohol gas sensor MQ-3

Alcohol gas sensor MQ-3


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The MQ3 allows to measure the concentration of alcohol in the air captured.

Availability: Discontinued

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8,53 € tax incl.

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More info

This sensor can measure the concentration present in the air.

It is often used to achieve the ethymoletre.

Simple to use, it requires only a load resistance of 200 kohm to be used with a card Arduino.

But 200 kohm is the theory, in practice 10 kohm is better, so that's why we provide you with a 220 kohms resistance and resistance of 10 kohm with MQ3 sensor.


  • Power supply: 5V
  • High sensibility to alcohol and low sensiblitye in Benzene
  • Very responsive


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