PLT3130 is 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 and so on. There are a Sender and a Receiver included in the instrument.
The probe of the Receiver is built of coiled steel and may be bent as needed, in order to reach wires in congested or difficult areas. Depending on the circuit characteristic and sensitivity settings, the probe will pick up the signal from the wire in a range of positions. However, for the best possible range the Receiver’s probe tip (black cap) should be positioned perpendicular (at 90) to the wire being traced and either above or below it.
