SF6T-003 is a professional SF6 testing device designed for fast and accurate measurement of SF6 gas purity (including SF6 and N₂ mixed gas). It has a wide range of 0%-100%, a rapid detection of <2 minutes, a self-locking connector imported from Germany (zero leakage), a 10-hour lithium battery, and supports 100 sets of data storage and RS232 printout. It complies with CE, ISO 9001, and CNAS standards, and is suitable for power, laboratory, industrial production and other scenarios. It is the core tool for SF6 gas safety testing.