... 4 Current Sensing Clamps. 1P2W, 1P3W, 3P3W2M & 3P4W Power Measurement. True RMS Sensing. Power KW, KVAR, KVA, PF, θ ,Hz, & Energy KWh, ... - Points and Start / Stop Time. RS-232 Optical Interface with three phase voltage / current Waveform display and Harmonic analysis. Easy ... rdg ± 10dgts + clamp on sensor specifications± 0.1%rdgApparent Power Measurement (KVA)Ranges Accuracy 600.0KVA± 0.5%rdg ± 10dgts ...