The GWWG-III High-Precision SF6 Gas Quantitative Leak Detector is carefully designed based on feedback from users and the actual conditions of China's power system.In addition to overcoming the shortcomings of foreign products and absorbing their advantages, this instrument also features high sensitivity, good stability, fast response speed, simple operation, and a large movement range. It can quickly and accurately perform qualitative and quantitative detection of leakage points and annual leakage rates in SF6 circuit breakers and GIS. The instrument is very suitable for power supply departments, installation and maintenance unitsand power test research institutes.