The Triplett MM350-NIST True RMS Auto Ranging Digital Multimeter measures AC/DC Voltage and Current, AC/DC µA Current, Resistance, Temperature, Capacitance, Frequency, Diode and Continuity. True RMS provides better accuracy when measuring non-sinusoidal or noisy waveforms. It features a 4000 count backlit LCD display, Data Hold, Relative mode, Min/Max, Auto power off, and Low battery indicator. With a CAT III 600V safety rating, the MM350 is well suited for a variety of commercial and residential applications such as security, home theater, electrical, HVAC installations and more. Includes Certificate of Traceability to N.I.S.T., test leads, temperature probe and (3) AAA batteries. 1-year warranty.