Alcohol Gas Sensor, MQ3 is a low cost sensor which can detect the presence of alcohol gases at concentrations from 0.05 mg/L to 10 mg/L
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Arduino MQ-3 Alcohol Sensor Tutorial - How Does a Alcohol Sensor Work and How to Interface it with Arduino?
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Amazon.com: MQ-3 Alcohol Sensor Module Alcohol Ethanol Gas Detection Alarm : Industrial & Scientific
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