The Pocket Toner® connects to any voice, data, or video cable to detect open/short circuits, continuity, AC/DC voltage* and dial tone* all while protecting up to 52 volts. The Pocket Toner comes in three models and several different kit configurations so no matter what your job, you can safely install and test. All of the Pocket Toners have dual audible indicators in the main body and detachable buzzer toner units, removable push on connectors, auto shut-off and easy-to-read indicators. Pocket Toner NX2-Deluxe Kit is perfect for the satellite, audio & video, LAN, voice, security & fire, and cable & telephone installer/technicians who need to quickly and easily test for continuity, AC and DC voltage, shorts, opens and 50-75 ? termination.