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Keyestudio MQ-3 Alcohol Ethanol Sensor Detection Module for Arduino

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This analog gas sensor - MQ3 is suitable for detecting alcohol. It can be used in a breath analyzer.
It has good selectivity because it has higher sensitivity to alcohol and lower sensitivity to Benzine.
The sensitivity can be adjusted by rotating the potentiometer.

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  • Power Supply: 5V

  • Interface Type: Analog

  • Quick response and High sensitivity

  • Simple drive circuit

  • Stable and long service life

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