A halogen leak detector from Grainger can help you find leaks in your air conditioning system. Use a refrigerant leak detector with interchangeable sensors to detect both halogen and combustible refrigerants such as those containing chlorine, fluorine or bromine gas. Choose a hand-held CO2 refrigerant leak detector to find leaks in systems using carbon dioxide refrigerants. Keep your air conditioning system functioning efficiently. Find leaks easily and fix them promptly with a halogen leak detector from Grainger.