Professional AIM MS6812 Telephone Wire Tracer Portable UTP Tool Kit LAN Network Cable Tester Line Finder

Features:
Judge continuty of the cable or wires.
Track the cables or wires, and diagnose the break point.
Receiver the tone signal on the cables or wires (telephone line).
Indentify the state in the working telephone line (clear, ring, busy).
Send a single 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.
Inteligence button and indicator light.
3000m effective detection distance.
Easy and convenient to use.