Cable Tester Kit, Testing Functions Continuity Testing, Adapters Included F-Type, RJ11, RJ45, Connector Type F, RJ11, RJ45, For Use With Coax, Twisted Pair, Includes Cable, Carrying Case, Remote, Tester, Features Determines Which Media Service is Running Over Cables Such as ISDN PBX and PoE (Pro Model), Identifies Wiring Errors Instantly and Displays the Results all on One Screen (All Models), Wire Mapping Detections Opens, Reversed Pairs, Shorts, Split Pairs, Alert Type Sound