UNI-T UT243 is a reliable True RMS digital clamp meter that is designed for measuring AC voltage and current, active power, apparent power, reactive power, power factor, phase angle, frequency, and active energy. Features: True RMS voltage/current measurement 3-phase 3-wire, 3-phase 4-wire and single-phase 2-wire measurements 10000 counts LCD dual display Phase sequence detection Max/Min modes Auto range, auto power-off, backlight, low battery indication Equipped with USB interface and PC software CD Specification: Power: 1.5V battery (R6) x 4 Display: 46mm x 42mm Product color: Red and grey Product net weight: 601g Product size: 303mm x 112mm x 39mm Standard accessories: Batteries, test leads, alligator clips, USB interface cable, PC software CD Standard individual packing: Gift box, English manual, toolbox Standard quantity per carton: 5pcs Standard carton measurement: 510mm x 375mm x 320mm Standard carton gross weight: 12.3kg Package Includes: 1 x Digital Clamp Meter UT243