SJH-SL Series is developed based on advanced dual-beam NDIR technology and Cubic mature miniature NDIR sensor platform. Adopting an innovative super low power design of microampere-level working current, SJH-SL Series achieves safety alarms for personal portable, solar, and wireless monitoring applications.
The NDIR Methane Sensor SJH-SL series leverages the existing mature SJH series product platform, and adopts an innovative low-power consumption design, achieving micro-amp level working current and carrying forward the same outstanding accuracy and long-term stability as the SJH series.
With the above advantages, the SJH-SL series can be used as a portable and wearable personal safety alarm in the fields of underground oil and gas, chemical, coal, laboratory and other fields.
Dual-beam NDIR technology
Super-low power at micro amp level
Linearization and factory calibration for accurate digital output
Matrix calibration to ensure high accuracy over full-temperature
Embedded temperature and humidity compensation
Innovative high humidity alert mechanism
Resistant to cross-interference
Long lifespan over 10 years
| 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 | 1mA |
| LifeSpan | >10 years |
| Ex-proof Level | Ex ia IIC T4 Ga certificate, T6 compliance |
| Dimension | Dia20*H19mm or Dia20*H16.6mm |
Contact Us to Explore Innovative Methane Gas Sensing Solutions!
inquiry@gassensor.com.cn
+86-27-81628827
Fenghuang No.3 Road, Fenghuang Industrial Park, Eastlake Hi-tech Development Zone, Wuhan, 430205, China 
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