Gas sensor MQ-3 (alcohol, ethanol)

Gas sensor MQ-3 (alcohol, ethanol)

Product information:

MQ-3 Gas sensor for detecting alcohol/ethanol.
- Alcohol gas 0.04 mg/L to 4 mg/L.

The MQ-3 sensor has an analog output and a digital output via an LM393 comparator.
The analog output can be read with an Arduino via analogRead.
The digital output provides a low or high signal depending on the threshold value set with the potentiometer.

Attention! Our MQ gas sensors are ideal for hobby projects and experiments, but they may not be used to ensure life safety. Use them responsibly and always ensure the correct safety measures in critical situations. Safety first!

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