The LANSeeker™ is a fast, rugged cable tester and tone generator in one unit.
Platinum Tools™ LanSeeker Cable Tester
The LANSeeker™ is a fast, rugged cable tester and tone generator in one unit. It tests for shorts, opens, miswires, reversals, and split pairs, and can display connection and fault information on a pair-by-pair basis. It also displays cable test results using LED indicators on the main and remote unit.
Comprehensive Tester
LanSeeker immediately detects shorts by just plugging in one end of a cable to the tester, and also identifies shorts, opens, miswires, reversed and split pairs.
No On/Off Switch
When the unit senses a connection between the main and remote unit, the battery-saving auto-on feature initiates test results within 2 seconds. The tester automatically powers off within 5 seconds of the cable being disconnected. 
Debug Pair By Pair
LanSeeker’s unique debug mode diagnoses and displays faults one pair at a time, so you pinpoint relevant ID connection and fault info, fast.
Includes Tone Generator
LanSeeker generates audio tones for use with tone tracers on all pairs, not just on a pair-by-pair basis.