In recent years, with the acceleration of urbanization, the urban area has continued to increase, and more and more urban sewers have been put into use. The organic raw materials in urban sewers gradually volatilize flammable gases after long-term fermentation. Over time, sewers become filled with flammable gases, and a spark can cause an explosion.

After analysis, the flammable gases in the sewer are mainly biogas. Considering that the oxygen concentration may be low, a CH4 sensor based on the infrared principle needs to be selected. In addition, the gas needs to be extracted for detection, and sampling pump-type equipment is required.

Oceanus OC-1000 portable pump-type gas detector can detect 1~5 toxic and harmful gases at the same time; LCD display; English operating system is simple to use and easy to use; built-in air pump, with sampling hose, the longest sampling distance is 30 centimeter.