Nf-801 Wire Tracker

The NF801 is commonly a network cable tester and line finder / wire tracer device used in networking and telecommunications. It helps technicians quickly trace and identify individual cables (like RJ45 and RJ11) in bundles, check continuity, locate breaks or faults, and map pin-to-pin connections on twisted pair and metal wires. The tester typically includes a tone generator and receiver, audible signal detection, LED indicators, optional earphone use for noisy environments, and works with a 9 V battery. It’s especially useful for troubleshooting LAN, telephone, and other cabling installations.