The MQ-3 sensor is one of the most commonly used sensors in the MQ sensor series. It is a chemiresisotors because sensing is based on the change of resistance of the sensing material when it is exposed to alcohol.
- Main chip: LM393, ZYMQ-3 gas detector
- Working Voltage: DC 5V
- Current consumption: 150mA
- With signal output instructions
- Two-way signal output (TTL level output and analog output)
- TTL output effectively signal for low level (when the output low level signal lights, can directly connected microcomputer)
- Analog output 0 ~ 5v voltage, the higher the concentration, the higher the voltage
- Size: 32 x 20 x 22mm
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