Urban underground comprehensive utility tunnels have been gradually constructed in major regions across China, and many cities have initially built part of such tunnels. During construction, it is obvious that protective work is particularly important. As the tunnels are designed to house natural gas pipelines, power cables, urban water supply, wastewater, and municipal waste, it is necessary to monitor gases such as oxygen and hydrogen sulfide inside the underground comprehensive utility tunnels.

Since urban underground comprehensive utility tunnels require the detection of two common gases—oxygen and hydrogen sulfide, oxygen sensors and hydrogen sulfide sensors shall be installed and used separately. According to the characteristics of different pipelines, the sensors shall be installed near areas prone to gas leakage and connected to the entire security system to achieve fully automatic operation.

Oxygen detectors are mainly used to detect the oxygen concentration in urban underground comprehensive utility tunnels, serving as a critical measure to ensure production safety and protection for underground construction personnel and safety supervision personnel. After all, excessive or insufficient oxygen concentration poses a huge safety hazard to human life.

Shenzhen Wuliang Technology Co., Ltd. recommends the S+4OX oxygen sensor:

The S+4OX oxygen sensor is an electrochemical oxygen sensor, commonly known as an oxygen battery. It adopts a 4-series size with a service life of 2 years, and is mainly used to measure the concentration of oxygen in the environment. It is widely applied in coal mines, iron and steel industries, petrochemical industries, medical treatment, tunnels, etc., typically for oxygen alarms and oxygen analyzers. Oxygen sensors are extensively used in coal mines, iron and steel industries, petrochemical industries, medical treatment, tunnels and other fields.

Hydrogen sulfide detectors are mainly used to detect hydrogen sulfide gas generated from sewage pipelines in urban underground utility tunnels. Excessively high hydrogen sulfide concentration will inevitably cause irreversible harm to human health.

Shenzhen Wuliang Technology Co., Ltd. recommends the GS+4H₂S hydrogen sulfide sensor, an electrochemical hydrogen sulfide gas sensor mainly used to detect the concentration of hydrogen sulfide gas in the air.