... phase multi-function power meter:1) To measure: Voltage, Current, Active Power, Reactive Power, Power Factor, Frequency (Hz), Kwh, 4 ... 4-20mA for voltage, current, active power, reactive power, frequency, power factor;8) With RS485 communication function (Modbus RTU ... NO DW9L-RC38B2NORS485DW9L-DC30B24-20mANO DW9L-DC38B24-20mARS485Multifunction Power Meter Features:1. Suit for LV/ HV voltage system2. ...