... , EP all power parameter.2). Class: active power 0.5 class; reactive power 1 class.3). Display: Three rows of ... light LED display,Intelligent PID control.4). Power impulse output; two circuits.5). Standard RS485 communication interface, support Modbus-RTU protocol ... (each phase)Impedance<20kΩFrequency40-60Hz±10%, accuracy 0.5%Electric energyActive and reactive electric energy measuring, accuracy class ...