Hydrogen Sulfide Gas Sensor - MQ-136

The MQ-136 is a Hydrogen Sulfide detection sensor with a sensing range of 1 - 200ppm. The sensing element is SnO2 which has lower conductivity in clean air. When H S gas is present the sensor s conductivity increases with gas concentration. A simple circuit makes measuring this change in conductivity and turning it into data fairly straightforward but it does require some calibration.For easy Solderability use our Gas Sensor Breakout Board.