... Data Logging(512KB Memory,20,000 Sets) 3).RS-232 Three Phase Power Analyzer TES-3600 10 Display Easy - to - View ... 3P3W2M & 3P4W Power Measurement. True RMS Sensing. Power KW, KVAR, KVA, PF, θ ,Hz, & Energy KWh, KVARh & KVAh Measurement. Phase sequency indicator ... Points and Start / Stop Time. RS-232 Optical Interface with three phase voltage / current Waveform display and Harmonic analysis. Easy - to ...