... 2%Frequency40~60Hz, accuracy 0.2%FunctionActive power, Reactive power, Apparent power, Accuracy: 0.5% classElectric energyFour ... measurement, active poweraccuracy rate0.5% class, reactive power accuracy rate1 classDisplayProgrammable, switching, LCD/LED display ... consumption≤5VAOutputDigital interfaceRS-485,MODBUS-RTUPulse outputTwo power pulse output, photo-couple relayEnvironmentWorking environment- ...