• Test the continuity of cables or wires

• Trace the cables or wires and diagnose the breakpoint

• Identify the state in the working telephone line

• Transmit a single or alternating tone across cables or wires and receive a signal with tone probe

• Adjusting the audio on the tone probe

• Includes RJ11 jack for telephones and alligator-style clips for wires

• Heavy-duty design for years of trouble-free use

Specifications:

• Material: ABS

• Power: 9V battery