SF6 detector is a portable instrument that can measure a variety of toxic and harmful gases. It has a replaceable probe design and is divided into two parts: host and probe. Users only need to change the probe corresponding to the gas type to measure. It is equipped with functions such as data preservation and export, Chinese and English language switching, two-stage sound and light alarm, and the built-in lithium battery can be used for more than 8 hours, which can be calculated for 5 minutes and the average value of 15 minutes. Users can directly turn on the detector after the calibration is complete. SF6 detector is suitable for: 1. The electric industry uses its high dielectric strength and good arc extinguishing performance, as high voltage switch, large capacity transformer, high voltage cable and gas insulation material. 2. Electronic grade high purity sulfur hexafluoride is an ideal electronic etching agent in the field of microelectronics technology, which is widely used. 3 refrigeration industry hexafluoride vulcanization stability is good, no corrosion of equipment, in the refrigeration industry can be used as a refrigerant (operating temperature between -45 ~ 0℃).