Amprobe AT-4005CON Advanced Wire Tracer with Clamp-On Attachment and Battery Booster Wire tracer locates and traces energized and non-energized wires, breakers, neutrals, and grounds to identify shorts, ground faults, and broken wires Automatic adjustment from energized to non-energized systems and manual selection of low, medium, or high sensitivity for flexibility of use Clamp-on transmitter attachment injects signal for non-contact operation and battery booster to strengthen the signal Compatible with 9 to 600V AC or DC circuits with an operating frequency of 32.786kHz Complies with European Standard EN61010-1: 2001, Category III 600V Pinpoints shorts, ground faults and broken wires Does not interfere with sensitive electronic equipment Precise sensitivity adjustment Battery Booster strengthens signal for open tracing Clamp-on attachment injects signal for non-contact operation