1. Tests 4 types of cables: RJ11/ RJ45/ USB/ BNC.
2. Test distance: 450m.
3. LEDs indicate connections and faults.
4. Simple one-button test.
5. Detachable module for testing remote points.
1. Don`t connected high voltage lines to avoid burning 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.