◆ Detect leaks in other systems and storage/recovery containers .It will respond to All halogenated(contains Chlorine of Fluorine)refrigerants. This includes,but is not limited to : CFCs e.g.R12,R500,R503 etc? HCFCs e.g.R22,R123,R124,R125 etc? HFCs e.g.R134a,R404a,R125 etc? Blends such as AZ-50.HP62.MP39 etc?