MQ-137 Ammonia Gas Detection Sensor

MQ-137 Ammonia Gas Detection Sensor

The MQ137 Ammonia (NH3) Gas Sensor is specifically designed for ammonia gas detection, making it ideal for use in NH3 gas alarms, industrial leakage detection systems, and portable gas detectors. Featuring a sensitive SnO2 material, the sensor exhibits low conductivity in clean air, but its conductivity increases in direct proportion to the concentration of NH3 gas. This change in conductivity can be easily converted into an output signal, indicating the gas concentration through a simple circuit. Known for its exceptional sensitivity to ammonia, the MQ137 is also effective in detecting organic amines like trimethylamine and cholamine. Its versatile detection capabilities and cost-effectiveness make it a reliable choice for a wide range of applications requiring gas monitoring.

Features

• You can use it as both digital sensors and analog sensors.
• This sensor operates in an analog voltage range of 0V to 5V. In the case of digital voltages, the output voltage is either 0 or 5V.
• It has high sensitivity to ammonia and organic amines.
• It provides a stable operation along with fast response.
• You can change the digital pin sensitivity by connecting a potentiometer and varying its resistance.
• It provides a feature of preheating duration over 24 hours.

Specification:

Package Include:

1 x MQ-137 Ammonia Gas Detection Sensor