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
![2PCS MQ-3 Alcohol Gas Sensor Module, Double-Sided Circuit Board Ethanol Detector Breath Gas Detection Sensor Module,Module : Industrial & Scientific - Amazon.com 2PCS MQ-3 Alcohol Gas Sensor Module, Double-Sided Circuit Board Ethanol Detector Breath Gas Detection Sensor Module,Module : Industrial & Scientific - Amazon.com](https://m.media-amazon.com/images/I/61Hl7xqEQIL.jpg)
2PCS MQ-3 Alcohol Gas Sensor Module, Double-Sided Circuit Board Ethanol Detector Breath Gas Detection Sensor Module,Module : Industrial & Scientific - Amazon.com
![Amazon.com: MQ-3 Alcohol Sensor Module Alcohol Ethanol Gas Detection Alarm : Industrial & Scientific Amazon.com: MQ-3 Alcohol Sensor Module Alcohol Ethanol Gas Detection Alarm : Industrial & Scientific](https://m.media-amazon.com/images/I/71OVUcQuwKL.jpg)
Amazon.com: MQ-3 Alcohol Sensor Module Alcohol Ethanol Gas Detection Alarm : Industrial & Scientific
![Arduino MQ-3 Alcohol Sensor Tutorial - How Does a Alcohol Sensor Work and How to Interface it with Arduino? Arduino MQ-3 Alcohol Sensor Tutorial - How Does a Alcohol Sensor Work and How to Interface it with Arduino?](https://circuitdigest.com/sites/default/files/inline-images/MQ3-Alcohol-Sensor-Pinout.jpg)