Soldered 333103 Alcohol, Ethanol sensor MQ3 breakout
Description
The MQ3 gas sensor detects alcohol in the air. It responds best to alcohol in liquid form, but it can also measure the concentration of substances in the gaseous state effectively. It requires only a short time to heat up to function properly.
The breakout board operates with both digital (DO) and analog signals (AO). The digital output is obtained by setting the thresholds with the potentiometer. The analog output varies according to the gas intensity around the sensor.