... phase multi-function power meter:1) To measure: Voltage, Current, Active Power, Reactive Power, Power Factor, Frequency (Hz), Kwh, ... ;7) Transformed analog output 4-20mA for voltage, current, active power, reactive power, frequency, power factor;8) With RS485 ... terminals, easy to install9. Panel size: 96 x 96mm10. Password protect Multifunction Power Meter Basic Function:Provide one RS485 communication ...