... pulse output. Widely applies in domains and so on electric power, coal, machinery, metallurgy, petroleum, chemical ... .2%Frequency40~60Hz, accuracy 0.2%FunctionActive power, Reactive power, Apparent power, Accuracy: 0.5% classElectric energyFour quadrant ... measurement, active poweraccuracy rate0.5% class, reactive power accuracy rate1 classDisplayProgrammable, switching, LCD/LED display PowerOperation ...