... power meter. 2. RS485/ Modbus. 3. Power quality analysis. DescriptionMultifunction network electric power Meter uses in the electrical power ... 2%Frequency40~60Hz, accuracy 0.2%FunctionActive power, Reactive power, Apparent power, Accuracy: 0.5% classElectric energyFour ... , active poweraccuracy rate0.5% class, reactive power accuracy rate1 classDisplayProgrammable, switching, LCD/LED display ...