Klein Tools MM700 is an automatically ranging true root mean squared (TRMS) digital multimeter that measures AC/DC voltage, AC/DC current and resistance. It can also measure temperature, capacitance, frequency, duty-cycle, diodes and continuity. 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. Automatic ranging true root mean square (TRMS) technology for increased accuracy Built to withstand a 6.6 ft (2 m) drop and withstand daily wear and tear on the job site Low Impedance (LoZ) mode for identifying and eliminating ghost or stray voltages Low battery indicator and easily accessible battery and fuse replacement compartment