Klein Tools CL800 Electrical Tester is an automatically ranging true root mean squared (TRMS) digital clamp meter that measures AC/DC voltage, resistance, continuity, frequency, capacitance, and tests diodes via test-leads, and temperature via a thermocouple probe. It also features a Low Impedance (LoZ) mode for identifying and eliminating ghost or stray voltages. Klein Tools Test and Measurement product line was exclusively designed from the ground up by electricians for electricians. Years of field research, combined with extensive input from electricians across America, inspired the development of meters and electrical testers loaded with innovative, time-saving features. VERSATILE TOUGH CLAMP METER Measures ACDC current and NCVT via clamp; ACDC voltage, resistance, continuity, frequencyduty cycle, diode test and capacitance via testleads; temperature via thermocouple LOW IMPEDANCE MODE LoZ mode for identifying and eliminating ghost or stray voltages BACKLIT DISPLAY LCD shows clear readings in lowlight conditions for enhanced visibility ACCURATE MEASUREMENTS Autoranging and True Root Mean Squared TRMS technology provides precise and accurate measurements CONVENIENT FEATURES Integrated worklight; test lead holder on the side of the clamp and optional magnetic hanger Cat. Nos. 69445 or 69417 for handsfree operation ENHANCED DURABILITY IP40 ingress protection and 6.6 ft. 2 m drop protection to meet jobsite demands COMPLETE PACKAGE Includes carrying case, test leads with CAT IIICAT IV safety caps, thermocouple, instructions, and 2 x AAA batteries