MQ-3 Alcohol Ethanol Detection Sensor Module

The MQ-3 alcohol sensor is suitable for detecting alcohol or ethanol concentration in your breath, just like a normal breathalyzer. It has high sensitivity and fast response time. The sensor provides an analog resistive output based on alcohol concentration. The drive circuit is very simple, all it needs is one resistor.

Technical Detail

1. Continuous Analog output
2. 3-pin interlock connector
3. Low cost and compact size
4. Operation Temperature: -10 to 70 degrees C
5. Heater consumption: less than 750mW