Revolutionary detector has been completely redesigned for fewer comebacks, less hassle and lower maintenance costs. Detects all halogenated refrigerants. Certified to SAE J1627. UL classified. Cordless. Uses 2 'C' cell batteries. Includes carrying case. Has ultimate sensitivity of less than .4 oz./yr. Replaceable tips. Model # TIFXL1. U.S.A. Ship Wt. 3 lbs.