T180 Cable Tracer AMPLIFIER PROBE The Amplifier Probe is designed to identify and trace wires or cables within a group without damaging the insulation. Works with any Tone Generator to identif wires Volume control for increased sensitivity and adjustable to suit work environment recessed on/off button prevents battery drain Power supply is in any 9V battery with a life of approximately 100 hours A plug receptacle is designed for head set or hand set TONE GENERATOR Tone Generator is a great tool for locating and identifying cable pairs or individual conductors besides providing tone enerator, also serves as a continuity and polarity tester test results are displayed by a three coloured LED T180