The Extech EX355 is a professional DMM with numerous advanced features and functions. Low Impedance Mode (LoZ) - Prevents erroneous readings due to stray voltages. Low Pass Filter (LPF) - Attenuates high frequencies for low-noise, precise readings. The multimeter's true RMS value provides precise readings when measuring distorted or noisy waveforms. Integrated non-contact AC voltage tester quickly checks for the presence of AC voltage before measuring. The handheld multimeter has a 6,000-value LCD display, integrated reading memory, min-max, relative mode, capacitance zero, auto power off, continuity and diode test. This meter measures AC and DC voltage up to 600 V and AC and DC current up to 10 A. Includes test leads, two AA batteries, manual and universal flexible temperature probe.