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. Comes with cables.
- Power supply needs: 5V
- Interface type: Analog, Digital
- High sensitivity to alcohol and small sensitivity to Benzine
- Fast response time
- Stable and long life
- Simple drive circuit
- Size: 32x20mm