The Extech EX350 is a professional DMM with many advanced features and functions. Low Impedance (LoZ) mode to prevent erroneous readings due to stray voltages. Low Pass Filter (LPF) attenuates high frequencies to reduce noise and obtain accurate readings. True RMS provides accurate readings when measuring distorted or noisy waveforms. Integrated non-contact AC voltage tester quickly checks for the presence of AC voltage before measuring. The multimeter features a 4000-count LCD display, built-in reading memory, min/max, relative mode, capacitance zero, auto power off, continuity and diode test. The TRMS multimeter measures AC and DC voltages up to 600 V and AC and DC currents up to 10 A. Complete with test leads, manual and two AA batteries.