Platinum Tools 4Mapper™ Coax Tester with 4 Custom F Remotes, Remote Holster & 1 F (F to F) Adapter (T104C)Easy and quick solution to troubleshoot, identify, and MAP multiple coax cables connected to televisions, security cameras, splitters, monitors, or routers The individually identified custom remotes allow you to track up to 4 connections at a time EZ 1 Button design Displays pass, open or short Integrated tone generator Automatic power off Line voltage warning LED Flashing low batter LED Ultra bright, high intensity LED's, easy to see in the daylight