×
MQ-137 Ammonia Gas NH3 Sensor Module
The MQ137 sensor module detects gases like ammonia (NH3) and carbon monoxide (CO).
- Spec name: MQ-137 Ammonia Gas NH3 Sensor Module
- Applications: Detector measure Gases like NH3 or CO, Air quality monitor, Gas leak alarm, Safety standard maintenance, Maintaining environmental standards in hospitals
- Power: 5V
- Output: Digital pins
-
Features:
- Wide detecting scope
- Fast response (less than 1s)
- High sensitivity (3%)
- Circuit voltage: DC5V
The MQ137 gas sensor module is specially designed to detect and sense gases like ammonia (NH3) and carbon monoxide (CO). It comes with digital pins that can be connected to a microcontroller like Arduino boards. This module is useful when you are trying to detect a specific gas.
Power the gas sensor module with 5V and observe the power LED glowing. When no gas is detected, the output LED remains off, indicating the digital output pin is at 0V. These sensors require pre-heating before use. Introduce the sensor to the gas you want to detect, and the output LED will go high along with the digital pin. Adjust the potentiometer if needed.
* Images are for illustration only; actual product may vary.