Yw-801b Wire Tracker Cable Tracer

The YW-801B Cable Break Finder Tester is a handheld network and telephone cable tester & tracer used to locate and diagnose issues in wired connections. It works with RJ45 (Ethernet) and RJ11 (telephone) cables as well as other metal conductive wires to help you find specific cables and check their condition. The device can trace cable routes, detect open or shorted connections, identify reversed or incorrect wiring, and test various line states (e.g., idle or ringing). It typically uses a transmitter and receiver, powered by a 9 V battery, and can scan wires over long runs (up to several kilometers), making it useful for network, telecom, and general wiring troubleshooting.