Ammonia Gas Sensor - MQ-137

via SparkFun
$69.90
SKU SF-SEN-17053

We can get 134 units in Australia from SparkFun. If you order today, we can dispatch this stock between Mar 09, 2021 - Mar 11, 2021.

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 straight-forward, but does require some calibration.

For easy Solderability; use our Gas Sensor Breakout Board.