Ammonia (NH3) 空气质量传感器

空气质量传感器 Fermion: MEMS Ammonia NH3 Gas Detection Sensor (Breakout, 1-300ppm)

空气质量传感器 The 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 sensor s conductivity gets higher as the gas concentration rises. A simple circuit

空气质量传感器 4 Series Electrochemical Ammonia 100ppm