... ,power,power factor, 2. Multi-tariff energy 3. RS485/Modb 3-phase panel mounted energy meter detailed product description 1. LCD screen, measuring ... kWh value, voltage, current, power, power factor, 2. Multi-tariff energy 3 ... .5%Frequency0.01Active energy0.5%Reactive energy2.0% PMAC905 RS485 energy meter kwh meter