THIS IS A TESTED AND WORKING AND IN EXCELLENT CONDITION cable tester. It is a device used to test various network and data cables for continuity, short circuits, and other wiring issues. The device is designed to test RJ-45 (Ethernet), RJ-11 (telephone), IEEE 1394 (FireWire), USB, and BNC coaxial cables. It uses LED indicators to show the status of each wire, such as power, short circuit, no connection, or cross-wiring. It is a professional tool for network services and installations.
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