Three Phase Digital Phase Meter 1.measure AC voltage,current,phase,frequency,phase sequence,power 2.Upload Data:RS232 ETCR 4400 Three Phase Digital Phase Meter Features:Simultaneously measure three-phase AC voltage, current, phase, frequency, phase sequence, power, current vector sum. Clamp Size: 35×40mm, Phase: 0~360°, AC Current: 0.0mA~20.0A, AC Voltage: 0.00 V~600V, Active Power: 0.0W~12kW, ...