Amprobe CT-100 Current Tracer Kit Locate and trace indoor electrical wires, breakers, neutrals without interrupting power 3 sensitivity settings Indicates wires and breakers with LED lights Traces live wires from 9 to 300V AC and DC Traces energized wires without power interruption: 9-300V AC/DC Locates breakers without power interruption: 9-300V AC/DC Traces unenergized wires (wire continuity and wire grounded at the end): T-100 Transmitter and 9V batteries Pinpoints shorts and ground faults: T-100 Transmitter and 9V batteries Sensitivity settings: 3