... power meter, 2.singal phase 3.LCD or LED display 4.factor directly sales multifunction power meter can high-accuracy ... with communication interface and pulse output function.with modbus-RTU, and LCD display.and RS-485 communication.and work with PLC ... power, power factor,frequency,active energy,reactive energy. display:LCDcommunication:RS485,MODBUS-RTU AC57.7V,AC100V,AC220V,AC380V,DC2V,DC20V,DC200V ...