... .6~16mm,ISO,CE,OEM ETCR1000C Phase Rotation Indicator Our buyers have stayed with us ... three bare firing lines, while ETCR1000C uses clamp non-contact measurement, without taking off the ... , intuitive and clearSensitive and reliableMore sensitive ETCR1000C clamp, can even sense the AC voltage signal ... 600V, 40~70Hz (Sine Wave Continuous Input)Clamp Wire SizeDiameter ø1.6-ø16mmLED Display[Positive Phase ...