... realize display switching,parameter program setting.Multifunction (network) power meter has various extending function modules;RS485 digital interface canrealize instruments ... -2S7kVarh,kWhLED PD194Z-2SYU,I,kW,kVar,KVA,KVarh,kWh,Hz,cos φLCD 96*96mm Model Measurement Display Extend ... LEDPD194Z-9S7kVarh,kWhLED PD194Z-9SYU,I,kW,kVar,KVA,KVarh,kWh,Hz,cos φLCDOrder example Please indicate the required model ...