... High temperature resistant materials9. Spring type buckle, easy to installBasic Function 1. Measure and display kWh value2. One RS485 communication3. ... : V, I, P, Q, S, PF, FOptional Function 1. Multi-tariff2. Reactive energy measuring3. Demand analysis ParameterAccuracyVoltage0.2%Current0.2%Active power0 ... factor0.5%Frequency0.01Active energy0.5%Reactive energy2.0% Three Phase KWH Energy Meter