Ammonia Gas Sensor - MQ-137 SAFECROSS 4 feet tall and weighs

4 feet tall and weighs approximately 650 lbs

runs 20 hours (CR123A)

These 64x64 RGB LED panels are an awesome place to start

Wiring: 15` 16/3 SOOW Cord

  Long tear drop shaped beam pattern

Ammonia Gas Sensor - MQ-137 SAFECROSS 4 feet tall and weighsThe MQ 137 is an Ammonia (NH) gas sensor from Winsen. The sensing element is SnO2, which has lower conductivity in clean air. When NH (Ammonia) gas exists, the sensors 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](https: www.