Mastech MS2138R with Tekpower Line Splitter M920, Auto Ranging True RMS AC/DC Voltage and AC/DC Current Clamp Meter With Tekpower Wire Splitter and Super Bright LED Flashlight on the Top True RMS digital clamp on 3 3/4 digits multimeter with highest resolution & best quality With Wire, Line splitter Auto-range, Auto zero, Auto power-off, back light, flash light, data hold, min & max memories Overrage, low battery and polarity indication In full conformance with IEC1010 CAT III 90-day money back guarantee