Klein Tools CL120VP Premium Clamp Meter Electrical Test KitCL120 Clamp Meter measure AC current via the clamp, and AC DC voltage, resistance and continuity via test leads Meter has backlit LCD for ease of viewing in low light and is CAT III 600V, Class 2 Double Insulated RT210 detects the most common wiring problems in standard and GFCI receptacles A convenient chart on RT210 helps determine wiring conditions: open ground, reverse polarity, open hot, open neutral, and hot ground reversed NCVT 3P has dual