... ,I 0.2 class, P,Q 0.5 class, Active electric energy 0.5 class, Reactive electric energy 2 classDisplayLED / LCD DisplayNetworkThree Phase Three ... <20kΩFrequency40-60Hz±10%, accuracy 0.5%Electric energyActive and reactive electric energy measuring, accuracy class 0.5%Power supplyWorking rangeAC,DC 80V~270VPower ...