MQ137 Ammonia Detection Sensor NH3 Gas Sensor Detective Module
Features:
- With the signal output LED indication
- 2-way signal output (analog output, and TTL-level output)
- TTL output valid signal is low; (low output signal light, which can be accessed microcontroller IO port)
- Analog output increases with the concentration, the higher the voltage the higher the concentration
- Ammonia has a high sensitivity and selectivity
- With a long life and reliable stability
- Fast response characteristics
- With mounting holes for easy permanent installation
- The probe can plug design for easy testing
Application:
- For the family, the environment of hazardous gas detection device, suitable for the detection of ammonia vapor, ammonia gas sensors tested concentration range: 10 to 300ppm