The Fluke Networks TS52 PRO Test Set with Caller ID features the latest in test set technology. Designed with a superior, radiant liquid crystal display (LCD) user interface, it allows you to see what cannot be heard in any outside plant environment. The back lit LCD and phosphorescent (glow-in-the-dark) keypad brings light to even the darkest of work environments. Features DataSafe Pro, Drop Safe to 20 feet, DSL/POTS Filtering Technology, Rain Safe and 2-Way hands-free speakerphone. Comes with 346A Plug cordset.