Automatically run all tests and inspections to find problem shorts, open wires, cross-wiring, and other wiring incidents. Brand new network cable tester, visible LED status display.The easy-to-read LED display shows the problem. Handheld and easy to carry.It is used to test your self-made Ethernet wiring cable to make sure it works normally before connecting to your device. Test RJ45 cables, RJ11 telephone lines and network cables.Single-sided single-ended single-ended crystal head tester network cable on-off detector to line withstand voltage and anti-burning.It can easily distinguish cable, continuity, open and short.Colour: picture colorMaterial: ABSPackage Contents:1 * Network cable tester1 * Packing bagOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.