... and controlling power switch General: Z Series Multifunction network digital panel meter is designed for power monitoring requirement in power system ... Transmitting output or Switch module Digital Communication Electric energy pulsePD194Z -2S4U,I,kW,kVar,kVarh,kWh,Hz,cosφLED 4 loops ... -9S7kVarh,kWhLED PD194Z-9SYU,I,kW,kVar,KVA,KVarh,kWh,Hz,cos φLCDOrder example Please indicate the required model ...