Description
MQ3 Alcohol Gas Sensor – General Specifications:
High sensitivity to Alcohol Gas such as Methanol, Ethanol, Butanol, etc.
Long life and low cost
Simple drive circuit
The sensitivity can be adjusted by the potentiometer.
MQ3 Alcohol Gas Sensor – Technical Specifications
Detection Gas: Alcohol Gas
Concentration: 0.4mg/L ? 4mg/L
Supply Voltage: <24V
Heater Voltage: 5.0V ? 0.2V (High), 1.5V ? 0.1V (Low)
Load Resistance: Adjustable
Heater Resistance: 31? ? 3?
Heater Consumption: <900mW
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