MQ-3 Alcohol Sensor

Description

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. 

  

Specification:

• 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

Attachment:

• Datasheet
  
• Schematic
• Gas Sensor Project Sample and Coding

Video: