The Tone&Probe test kit enables quick and effortless tracking and identification of data, telephone, and coaxial cables. The tone generator provides comprehensive testing functions for fault diagnosis on the line and service verification, faster troubleshooting with power supply for external headsets, as well as polarity and continuity testing on the cable. The output power ensures unrestricted result output via the LED signal display and the clearly audible speaker, even over longer cable runs. The inductive receiver allows for the localization of even weak signals with acoustic and optical signal output and is equipped with a headphone jack for work in noisy environments, as well as an LED flashlight for work in dark conditions.