Soldered 333114 VOC sensor MQ138 breakout
Description
The MQ138 gas sensor detects the presence of volatile organic compounds (VOCs) such as toluene, acetone, alcohol, and hydrogen. It requires minimal time for preheating to function effectively.
The breakout board operates with both digital (DO) and analog signals (AO). The digital output is obtained by setting thresholds using the potentiometer. The analog output varies depending on the gas intensity around the sensor.
