... to the best state of detectingInner precise IC with Ultra-Low power consume circuit design, more stable, longer battery timeDouble-color visual display of ... includes, but is not limited to: CFCs e.g. R12, R11, R500, R503 etc... HCFCs e.g. R22, R123, R124, R502 etc ... ... HFCs e.g. R134a, R404s, R125 etc...Blends such ...