Automatic efficient scan for the miss wiring, disorder cable, open and short circuit Trace telephone wire/LAN cable. Trace wire in electrical system. It can take place of cable tester. Verify LAN cable condition. Continuity test. Cable Assignment Test and Cable State Testing;Remotely test cable up to 1000 ft in length ( remote kit included ) Low Battery Indication with Bright white LED flash light. Rapidly find the target wire from among plenty of telephone wires. Rapidly find the target wire from among plenty of network wires. WIRE TRACKER - The Line Finder can trace not only Ethernet LAN wires, but also electrical and speaker wires when connecting to the alligator clip; In this situation, the wires must be in power-off status, otherwise the units will be damaged; It is recommended to stripe down some of the wires when connecting through the clip; Select 'SCAN'; Emitter works properly if the 'SCAN' indicator is on; Use the receiver to find target wires.