1 Stück MQ135 Luftqualitätssensor Gefahrgasdetektionsmodul - Digital & Analog
3,64 €
The gas sensing material used in MQ-135 gas sensors is tin dioxide (SnO2) with low conductivity in clean air. There are different resistance values for different concentrations, and a simple circuit can be used to convert the change in conductivity into an output signal corresponding to the gas concentration.
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