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Industrial Grade NDIR CH4 Sensor-SJH

Industrial Grade NDIR CH4 Sensor-SJHSJH

The miniature NDIR CH4 sensor SJH is based on NDIR technology that is superior to thermal catalysis and heat conduction technology, and can detect 0 to 100% methane (CH4) concentration. It has the advantages of convenient operation, accurate measurement, reliable operation, simultaneous output of voltage and serial port, and dual beam design. To meet the different requirements of industrial field and laboratory measurement, it is widely used in gas detection and analysis in petrochemical, chemical, coal, medical, laboratory and other fields.
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  • NDIR technology, with long life and full measurement range
  • Meet the explosion-proof grade Ex iaⅡC T4 Ga
  • Internal full range temperature compensation
  • Diffusion sampling, stable performance
  • High precision, high resolution 0.01%
  • Small size and fast response
  • Antiseptic
  • Easy to install and reduce maintenance
  • Compatible with digital and analog voltage signal output


CO2 Sensor CM1106-C
Principle NDIR
Measurement Gas CH4
Measurement Range 0 ~ 5%Vol, 0 ~ 100%Vol
Accuracy 0-1%Vol: ≤±0.06%Vol,
1%-100%Vol: ≤±6% of reading
Resolution 0.01%vol
Response Time T90<25s
Output UART_TTL (2.5-3.3V) / 0.4-2V DC
Working Condition -40 ~ 70℃, 0~95%RH (non-condensing)
Storage Condition -40 ~ 85℃, 0~95%RH (non-condensing)
Power Supply 3.3~5.5V DC
Working Current 55 ~ 60mA
Life Span >10 years
Ex-proof Level Ex ia IIC T4 Ga certificate, T6 compliance
Dimension Dia20*H19mm or Dia20*H16.6mm

Note: 1. The measurement accuracy is defined as temperature 25±2℃ and atmospheric pressure 101.3kPa.

The above functions and specifications are subject to the official product technical specifications. For more technical information, please contact: 027-81628827 or

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