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