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Underground Pipe Network

Compared with other transportation methods, underground natural gas pipeline transportation has the characteristics of low maintenance cost and high safety. It has become the mainstream urban natural gas transportation method. However, this method of transportation also has some problems. For example, if the pipeline is buried in the ground for a long time, there is a potential risk of leakage for the pipeline due to local corrosion and perforation. In order to ensure the safety of gas transmission and reduce the cost of manual inspection, methane sensors are widely used in urban natural gas underground pipeline network monitoring systems to monitor and alarm for leaks.


  • Fast Response Time

    Fast Response Time

  • No Drift

    No Drift

  • Meet Exia ⅡC T4 Ga Standard

    Meet Exia ⅡC T4 Ga Standard

Based on non-dispersive infrared (NDIR) sensing technology, Cubic has developed a miniature infrared methane sensor SJH, which can monitor the changes of methane gas concentration online in real time and provide alarm signals to the monitoring system.


1. Non-dispersive infrared (NDIR) technology

2. Quick response and accurate measurement

3. Long-term operation with no drift

4. Meet the explosion-proof grade Exia ⅡC T4 Ga


The miniature infrared methane sensor SJH has both digital signal and analog signal output modes, and can provide a small size type, which is more flexible in application.

If you want to know more industry solutions and applications, please enter your contact details and your request in this form. Our specialists will contact you upon receipt.

Email: info@gassensor.com.cn

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