Amprobe invented wire tracer technology decades ago and continues to set the standard today. The most advanced of all wire tracers, the AT-4004 Advanced Wire Tracer combines the technology, features and functions to make sire tracing fast and precise.
<ul>
 	<li>Extremely easy to use</li>
 	<li>One universal transmitter- automatically switches to work with either energized or non-energized systems</li>
 	<li>Receiver not position sensitive- does not need to be rotated in order to provide accurate readings</li>
 	<li>Traces live wires buried or hidden behind walls</li>
 	<li>Traces energized and non-energized (open, broken) wires</li>
 	<li>Performs tests without having to interrupt power</li>
 	<li>Locates breakers, neutrals, and ground lines</li>
 	<li>Locates and traces wires in walls, floors, conduit, computer cables, etc.</li>
 	<li>Pinpoints shorts, ground faults and broken wires</li>
 	<li>Does not interfere with sensitive electronic equipment</li>
 	<li>Precise sensitivity adjustment</li>
 	<li>Battery booster strengthens signal for open tracing</li>
 	<li>Clamp-on attachment injects signal for non-contact operation</li>
</ul>