... 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, ... 600V(automatic shift)AC Current:0.0mA~20.0A (automatic shift)Phase:0~360°Frequency:45.00Hz~65.00HzActive Power:0.0W ...