This alcohol sensor is suitable for detecting alcohol concentration on your breath, just like your common breathalyzer. It has a high sensitivity and fast response time. The sensor provides an analog resistive output based on alcohol concentration. MQ3 Alcohol gas sensor is used as an alcohol gas sensing element in this module. It requires no external components just plug in Vcc & ground pins and you are ready to go.
This product has the MQ sensor carrier board included. Works with 5V and has TTL level digital and analog outputs which makes it very easy to use with Arduino and other microcontrollers.
For Digital output the threshold value can be easily set by an on-board potentiometer. Using this module you can easily interface MQ3 Alcohol sensor to any Microcontroller, Arduino or even Raspberry Pi.
As this Gas Sensor module has high sensitivity and fast response time to alcohol, it can be used in the breathalyzer. MQ3 Sensor also has small sensitivity to Benzine.
To a limited extent:
- Vehicle Alcohol Detector
- Portable Alcohol Detector
- Car Alcohol alarm