333113 Developer boards - Gas sensor, ammonia, MQ-137

The MQ137 gas sensor detects the presence of ammonia (NH3).

It is sensitive to liquids, but is also suitable for gases. The warm-up time of the sensor is short, which increases its efficiency. The breakout board enables the processing of digital (DO) and analog (AO) signals. By setting the limits using the potentiometer, a digital output can be generated, while the analog output reflects the gas intensity in its environment. Both signals provide information for the detection of ammonia with an Arduino (or a compatible board such as Dasduino).

Technical specifications