220V LCD Power Meter, 5A rated input metering volt, amp, kW, kvar, kWh, kvarh, Hz Harmonic, RS485, DI+DO, ... monitoring and displaying electric parameters include voltage, current, active power, reactive power, power factor, frequency, active energy and reactive energy.Additional, ... (wet contact) + 2 pulse output5. 2 pulse output + 2 analog output Optional Function: 1. Up to 31st harmonic analysis, ...