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MQ137 Ammonia NH3 Gas Sensor Module

SKU: SEN1709
Availability:

Out of stock


MQ137 Ammonia NH3 Gas Sensor Module

රු8,950.00

Out of stock

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  • 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

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