... e.g.R12,R11,R500,R503 etc HCFCs e.g.R22,R123,R124,R502 etc HFCs e.g.R134a,R404a,R125 ... in hospital sterilizing equipment (it will detect the halogenated carrier gas)Detect SF-6 high voltage circuit breakers Detect most gages ... portable sensitive device designed to pinpoint the location of halogen refrigerant leaks in refrigeration systems these include automotive air conditioning, refrigerators ...