... CAT2) Power measurement of 3-phase 3-wire, 3-phase 4-wire, single-phase mode 3) V, A, ... and five power parameters of each phase in 3-phase measurement mode respectively 6) Autorange ... and TRMS display 7) With PC RS232 interface and windows graphics software 8 ... Power supply: 4 batteries of 1.5 V, AA 8) Power consumption: 250 mW9) Storage temperature: - 20 ...