Analog type, DC 5V rated voltage,10-1000ppm Detecting Range, high sensitivity to Combustible gas in wide range.
The gas sensor are suitable for detecting Ammonia, Aromatic Compound, Sulfide concentrations in the air.It is able to give alarms when those gas leaks. You can adjust the sensitivity with the potentiometer.
1 x MQ-135 Gas Sensor Module
Development resources: demo codes, schematic, datasheets, etc.
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