... Rating: CAT II, 1000V Blue Non-Contact Voltage Detector Pen AC Volt Sensor Tester Alert 90~1000V LED, YFT397A Trade ... circuit breakers, wall sockets, junction boxes, fuses, etcSmall and compact pen design for easy carryingTest Voltage Range: 90-1000V ACFrequency Range ... , delays or other issue aroused by the shipping service.For item's safety, insurance is highly recommended. . Please confirm your ...