- Wide detecting scope
- Fast response (less than 1s)
- High sensitivity( 3%)
- the circuit voltage: DC5V
- Stable and long life
- Operating Voltage is +5V
- Detect/Measure NH3, Ammonia
- Concentration: 5-500ppm (Ammonia)
- Heater Resistance(RH): 31Ω±3Ω Room Temp
- Heater consumption(PH): ≤900mW
- Sensing Resistance(Rs): 2KΩ-15KΩ(in 50ppm NH3)
- Sensitivity(S): Rs(in air)/Rs(5000ppm CH4)≥5
- Slope(α): ≤0.6(R100ppm/R50ppm NH3)
- Analog output voltage: 0V to 5V
- Digital output voltage: 0V or 5V (TTL Logic)
- Preheat duration: 20 s
- Can be used as a digital or analog sensor
- The sensitivity of digital output can be adjusted using an onboard potentiometer
- 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)
- The voltage of the analog output, the higher the concentration, the higher the voltage.
- Arduino compatible
- Working humidity: 95%RH (nominal humidity 65%RH)
- Product dimensions (mm): 35 (L) * 20(W) * 28 (H)
- Weight: 14 g
Gas & Air Sensors, Sensors, Show All Sensors
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MQ137 Ammonia NH3 Gas Sensor Module
SKU: SEN1709
Availability:
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MQ137 Ammonia NH3 Gas Sensor Module
රු8,950.00 or 3 X රු2,983.33 with
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