Xisuo Sensing has leveraged its knowledge in optics, sensors, and micro-machining technology to develop a sensor module for environmental CH4 gas measurement, model XSJG-MCH4-100, designed and manufactured based on the principle of TDLAS tunable diode laser absorption spectroscopy.  

The sensor module uses high-quality imported lasers and detectors, paired with precision compact circuits, and, together with advanced and efficient software algorithms, is capable of accurately measuring CH4 concentrations from 0.00 to 100.0%VOL within a relatively small volume. It features a built-in closed standard gas reference channel to prevent measurement drift, making long-term operation more stable and reliable. The module’s circuit board uses industrial-grade chip design, optical components are stably fixed with dedicated adhesives, and a built-in temperature and pressure sensing unit can integrate with concentration measurement data, greatly enhancing the adaptability of the sensor module under different environmental conditions.

Technical Features

• Measurement Range: Typically two specifications of 0.00~10.0% VOL and 0.00~100.0% VOL (customizable).

• Accuracy: ≤ ±0.05% VOL within 0.00~1.00% VOL;

≤ ±5% of true value within 1.00~100.0% VOL.

• Resolution: 0.01% VOL;

• Service Life: >5 years.

• Measurement Frequency: 1 Hz.

• Output Interface: UART.

• Size & Weight: Φ42×34mm (excluding threaded connection), connection M20×14mm; weight 180g.

• Appearance Material: 304 stainless steel.

• Anti-Interference: Unique recognition for methane gas, not affected by other gases or water vapor.

• Features: Calibration-free, high accuracy, low power consumption, fast response time.

3 Application Scenarios

• Coal mine environment monitoring

• Petrochemical industry

• Biogas concentration measurement

• Municipal and building pipeline networks

• Gas and gasoline leak detection

卓斯安传感器产品手册.pdf