XD-46 MQ137 Ammonia Sensor NH3 Sensor Module 5-500ppm with Analog TTL Level Signal Output

Features:
- With level signal output and alarm signal indicator
- With analog signal output, voltage range: 0-5V
- Effective low level output signal can be used to drive PNP transistors. And it can be connected to the OP port of micro-controller
- The analog output voltage increases with the increase of the concentration. The higher the concentration, the higher the voltage
- High sensitivity to ammonia, trimethylamine and ethanolamine gases
- Long service life and reliable stability
- Fast to response and recover after preheating
- With mounting holes, it is convenient for fix and install
- Plug-to-play probe for easy testing
- With temperature compensation function, it works perfectly

Specifications:
- Test Gas: Ammonia
- Detection Range: 5 to 500 ppm
- Working Voltage: DC 5V
- Working Current: 180mA
- Output Voltage: 0 to 5V
- Sensitivity: > 3%
- Circuit Voltage: ≤DC 5V   
- Load Resistance: Adjustable 10K
- Component Power Consumption: ≤0.9W
- Life Span: 5 Years
- Working Temperature: -10 to 50℃ (Nominal temperature 20℃)
- Operating Humidity: 95%RH (Nominal humidity 65%RH)
- Response Time: ≤1S (Warm-up in 30-50mins)
- Recovery Time: ≤30S
- Size: 40 x 35 x 28mm
- Weight: Around 16g

Applications:
- Mainly used for qualitative testing, suitable for home, industrial environment, portable gas detection equipment, and detection of ammonia-containing gas.

Package Included:
- 1 x Ammonia Sensor Module