... power,reactive power,power factor,Hz, kWh,kvarh,harmonic,RS485/Modbus, CE certify PMAC720 Multifunction Power Meter detailed description:Harmonic Power ... than 30 parameters measurement, two RS485 communication are supported* Power supply: 85~265VAC, or 80~300VDC*Programmable CT ... 31st harmonic analysis*Over limit alarm*TOU*Build-in clock and SOE*Optional module (DI/DO)*High definition LCD screen ...