... range:AC60~600V,40 Hz~70Hz 3.10mm~40mm,ISO,CE,OEM ETCR1000D Phase Rotation Indicator Our buyers have stayed ... -wire identification, phase deficiency determination, break location detection, DC line break and line maintenance, equivalent to 3 induction electric pens. Dynamic ... ; Carrying case; 1 Piece. . Field Application ETCR1000D Portable 3 Phase Rotation Indicator --- ISO,CE,OEM services available