1. Locate faults for RJ11/RJ45/BNC/USB Cable;
2. Check crosstalk, open, short, cross;
3. Measure cable length accurately.
4. Memory and storage function ;
1.Don't connect high voltage live lines to avoid buring out the machine.
2.Put into the right place to avoid hurting others,because of the sharp part.
3.Connected the cable to the right port.
4.Read the user manual before use it.