... ) V, A, W, VA, VAR, KWh, PF, Hz measurement 4) Double display two parameters on eash menu and store 28 groups of ... :1) Max. common-mode voltage: 600V AC RMS2) Mode of display: LCD display; Max. reading: 6000 3) Range selection: Fully automatic range ... selection 4) Frequency detection: automatic (when harmonic is serious, it is better ...