The Tone&Probe test kit allows for quick and effortless tracking and identification of data, telephone, and coaxial cables. The tone generator offers comprehensive testing functions for fault diagnosis on the line and service verification, enabling faster troubleshooting with power supply for external headsets, as well as polarity and continuity testing on the cable. The output power ensures unrestricted result display via the LED signal indicator and the clearly audible speaker, even over longer cable lengths. The inductive receiver enables 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 working in dark conditions.