Designed to identify and trace wires or cables without damaging the insulation, you can also use it in checking for short circuit and locating open circuit
In addition, it can also be used to identify some states of telephone line so that it is more convenient to install, debug and maintain telephone lines, there are a sender and a receiver included in the instrument
Judge continuity of the cables or wires
Judge where is circuit-breaker
Track the cables or wires, and diagnose the break point
Receiver the tone signal on the cables or wires (telephone line)
Identify the state in the working telephone line (clear ring, busy)
Send a single solid tone or a dual alternating tone to the object cables or wires
