1. Check and find the needed cables among so many cables
in one time.
2. Continuity test — wiremap for Lan cables.
3. Diagnose the breakage, open, short, cross.
4. Visible indication: pin-to-pin cable map for individual
cable (not by pairs).
5. Transmitter with RJ11 connector and pair of alligator
6. Low Voltage alarm function.
7. Earphone permits use in noisy environments.
8. LED light assists use in dark corners.