- • Detection Gas: Alcohol, C2H5OH
- • Detection Range: 20~ 500ppm alcohol
- • Application: It has high sensitivity to alcohol and quick response and resume, widely used in portable alcohol gas detector.
- Principle Introduction:
Manufacture mini size alcohol sensors for gift-type breathalyzer use.
Sensitive material of MQ-303B gas sensor is semiconductor material which is with lower conductivity in clean air. When the target alcohol gas exists, the sensor’s conductivity gets higher along with the gas concentration rising. Users can convert the change of conductivity to correspond output signal of gas concentration through a simple circuit.
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