1. LCD,measuring volt,amp,watt,var,va,Hz, cosf,kwh,kvarh, harmonics,demand 2. ... window programmable: 1/ 2/ 3 mins ØMulti-tariff billing, historical data of 31 days and 12 months 2 kinds of setting ... %Harmonic1.0%Unbalance rate1.0% PMAC770 panel mounted power meter data log