... kWh value, voltage, current, power, power factor, 2. Multi-tariff energy 3. RS485/Modbus Alibaba recommended produc Perfect, stability, Reliability Features ... . Power factor—PFa, PFb, PFc, ∑PF7. Frequency8. Active energy—4 quadrant kWh9. Reactive energy– 4 quadrant kvarh Optional Function:1. Statistics of ... %Frequency0.01Active energy0.5%Reactive energy2.0% PMAC905 3-phase energy meter remote control