... following features:1) To measure: voltage, current, active power, reactive power, power factor, frequency, Kwh, 4 quadrant energy, etc. Total ... output 4-20mA for voltage, current, active power, reactive power, frequency, power factor;8) With RS485 communication function (Modbus RTU ... rangeAC/DC 100--240V (85--265V)Power supply consumption≤7VA DW9E 3 Phase Power Meter / 3 Phase Electric Energy Meter