SL-808A, B-type buried pipeline leak detector can detect the pits on the pipeline, but also can detect pit and well near the pipeline. It can detect leak of liquefied petroleum gas, artificial gas, natural gas and other flammable gas, It is an indispensable leak detection equipment in the gas industry of our country.It is mainly used in the detection of the leakage point of the underground gas pipeline of the city gas company; for the accurate location of the leakage point of the long-distance pipeline of the gas production plant and gas transmission company; In the natural gas purification plant, chemical plants, gas stations and other units of the underground pipeline to find, and underground pipeline joints, valve point detection.

'Features'
1, with a handheld probe on the ground, underground flammable gas leak detection;
2, the underground pipeline leak alarm gas concentration alarm when the sound;
3, built-in rechargeable battery;
4, the use of the world's advanced sensors and suction pump, which can effectively avoid the asphalt pavement volatile gas and vehicle exhaust interference, with low temperature, high sensitivity, high stability of the significant advantages;
5, inhalation leak detection, high sensitivity, fast response time;
6, the operation is simple, just open the power switch and zero can be detected, the investigation of road leakage conditions;
7, the alarm sound by the proportion of concentration changes, the staff need not pay attention to display the value.

'Detection principle and method'
When the transport of combustible gas in the underground pipeline is corroded or cracked perforation, resulting in leakage, run to the ground run, spread, and the diffusion point is just above the concentration, according to this phenomenon, the use of gas sensors in the pipeline above the move, When the contact with flammable gas, the leak detection meter instructions quickly become larger, resulting in an alarm signal, adjust the sensitivity to determine the concentration of large areas, you can accurately find the location of the leak.