Ammonia Gas Sensor - MQ-137
SKU 3843
Save 22%
Original Price
£42.92
inc VAT
Current Price
£33.40
inc VAT
£27.83 ex VAT
£27.83 ex VAT
The MQ-137 is an Ammonia (NH₃) gas sensor from Winsen. The sensing element is SnO2, which has lower conductivity in clean air. When NH₃ (Ammonia) gas exists, the sensor’s conductivity gets higher along with the gas concentration rising. A simple circuit makes measuring this change in conductivity and turning it into data fairly straightforward, but does require some calibration.
Note:
- PCB is not included.