MQ-137 Ammonia Gas NH3 Sensor Module

Description

MQ-137 Ammonia Gas NH3 Sensor Module

The MQ137 sensor is a gas sensor module is specially designed to detect and sense gases like ammonia (NH3) and carbon monoxide (CO). The MQ137 gas sensor module comes with digital pins that can be connected to a microcontroller like Arduino boards and come in handy when you are only trying to detect one particular gas.

Applications of MQ137 Gas Sensor

1. Detector measure Gases like NH3 or CO
2. Air quality monitor
3. Gas leak alarm
4. Safety standard maintenance
5. Maintaining environmental standards  in hospitals

Features:

1. Wide detecting scope
2. Fast response (less than 1s)
3. High sensitivity( 3%)
4. the circuit voltage: DC5V
5. Stable and long life
6. Analog output voltage: 0V to 5V
7. Digital output voltage: 0V or 5V (TTL Logic)
8. Can be used as a digital or analog sensor
9. The sensitivity of digital output can be adjusted using an onboard potentiometer
10. The TTL output valid signal is low. (When the output is low, the signal light is on, it can be directly connected to the MCU or relay module)
11. The voltage of the analog output, the higher the concentration, the higher the voltage
12. Arduino compatible

Package Includes:

1 x MQ-137 Ammonia Gas NH3 Sensor Module