1. Stable performance: Test the cable to find problematic short circuit, open the wire, cross wire pairs and other wiring faults to keep the network running smoothly.
2. LED display: easy to read LED display display problems.
3. Handheld and portable: easy to use, no space.
4. For multi-function devices: detachable main/remote unit for multi-function devices.
5. Convenient operation: A 9V battery (not included) is required. Connect the cable to the main control unit and the remote control to test the cable for problems.