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The most advanced of wire tracers, the Amprobe AT-4005-A wire tracer has all the features of the AT-4004-A plus a battery booster that strengthens the signal for open tracing.
Our best wire tracer, use this electrical wire tracer for finding wires in walls and locating breakers without interrupting power. You can also use it to find energized and de-energized wires, including broken and disconnected wires, and pinpoint shorts and ground faults.