Amprobe AT-1000 Wire Tracer polyester 90%/ EPE 10% Made in the USA and Imported Wire tracer locates and traces energized and non-energized wires, breakers, coaxial cables, and telephone wires to identify shorts, ground faults, and broken wires Manual adjustment from energized to non-energized systems Five different sensitivity levels for flexibility of use Compatible with 0 to 300V AC or DC Receiver range from 1 to 3 feet from cable being traced Trace energized lines up to 300VAC or VDC Trace unenergized and open conductors Identifies breakers and fuses without powering down Identifies wires in a bundle Identifies control, alarm and telephone system wiring