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Future Electronics Egypt

Ammonia Gas Sensor MQ137

Ammonia Gas Sensor MQ137

LE 1,100.00

The MQ-137 is an Ammonia (NH₃) gas sensor .

Sensitive material of MQ137 gas sensor is SnO2, which with lower conductivity in clean air. When NH3 gas exists, the sensor’s conductivity gets higher along with the gas concentration rising. User can convert the change of conductivity to correspond output change voltage  of gas concentration through a simple circuit.

MQ137 gas sensor has high sensitivity to NH3 gas, also can monitor organic amine such as trimethylamine, chloramine well. It can detect kinds of gases including ammonia and is a kind of low-cost sensor for kinds of applications


Model: MQ137
Detection range: 5-500ppm
Detection principle: Semiconductor
Characteristics: Good sensitivity to NH3
Size: φ19×24.2
Working conditions: Loop Voltage:5±0.1V
Heater Voltage:5±0.1V
Heater consumption:≤950mW



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