MQ-3 Gas/ Alcohol Sensor

The analog gas sensor - MQ3 is suitable for detecting alcohol, this sensor can be used in a Breathalyser.It has a high sensitivity to alcohol and small sensitivity to Benzine. The sensitivity can be adjusted by the potentiometer.


Specification


Power supply needs: 5V
Interface type: Anal ...og
Pin Definition: 1-Output 2-GND 3-VCC
High sensitivity to alcohol and small sensitivity to Benzine
Fast response and High sensitivity
Stable and long life
Simple drive circuit
Size: 40x20mm