It can be used for judge the continuty of cable or wires, also can checks diagnose the break point.
It can receive the tone signal on the cables or telephone lines, and indentify the state in the working telephone line (clear, ring, busy).
Send a sin-gle slid tone solid tone or a dual alternating tone to the object cables or wires.
Tail large speakers, sound loud, in a noisy environment can also be heard, give you a better using experience.
With the inteligence button and indicator light, easy and convenient for you to use.
Detect continuity of the cables or wires without damaging the insulation
Track the cables or wires, and diagnose the break point. A professional & safe tool for wireman
Receiver the tone signal on the cables or wires (telephone line)
Identify the state in the working telephone line (clear ring, busy)