Sensores de calidad del aire 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
- SEN-17053
- SparkFun
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1:
$63.95
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9En existencias