JDSU TEST-UM TP350 Testifier Cable Tester (Discontinued by Manufacturer) Zoom Binoculars Catv, Telephone Systems, Audio Cable, Security/Alarm Wiring & Network Cabling Can Be Attached & Tested With Multiple Input Ports & Included Adapter Cables Large, Easy-To-Read Lcd Displays Cabling Results Using Clear, Concise Information & Ability To See All The Faults Connected With The Various Cable Types Warns Of Voltage On Lines & Shows A Pass/Fail Message After Each Test Built-In Tone Generator Sends A Signal Down Installed Wires So They Can Be Traced In The Walls, With The Exact Terminus Identi?Ed