... Power Meter, 5A rated input metering volt, amp, kW, kvar, kWh, kvarh, Hz Harmonic, RS485, DI+DO, Modbus/ Profibus, The PMAC720 Multifunction Power ... for monitoring and displaying electric parameters include voltage, current, active power, reactive power, power factor, frequency, active energy and reactive energy.Additional, PMAC720 ... %Un-balance1.0%0.0010~100% PMAC720 LCD 220V Modbus Power Meter