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
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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 H₂S petrol is present, the sensor’s conductivity increases with petrol 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 Petrol Sensor Breakout Board.
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