Wire Tracker Wire Tracer for Coax and CAT 5 - Accurate Line ID

In this review the Sperry Instruments ET64220 is examined as a compact wire tracer aimed at installers who need a reliable way to identify and trace individual runs of coax, CAT 5, speaker and phone wire. The bottom line: it is best for audio/video and network technicians who value a simple, noncontact tracing workflow and clear audible/visual feedback. The included adapter plugs and a positively identifying sensitivity control make it an efficient tool on mixed-cable job sites and maintenance checks.

Key Features

• Adapter plugs include RJ-45, RJ-11 and coax: lets technicians connect to common data, telephone and video lines without extra adapters, saving setup time on site.
• Automotive fuse blade and insulated clamps: provide flexible connection options for tracing a variety of cable types encountered in installations and repairs.
• Audible and visual indication: dual feedback helps quickly confirm the correct wire in noisy environments or when the technician needs a visual confirmation.
• Adjustable sensitivity: aids in isolating a single conductor when multiple wires run closely together, reducing false positives during identification.
• Battery powered units included: the transmitter uses two AAA cells and the receiver uses four LR44 cells, allowing immediate use out of the box without separate battery purchases.

Who It's For

The ET64220 is aimed at home A/V installers, network technicians and electricians who frequently trace coax, CAT 5, speaker and phone cables. Its selection of connector adapters and practical clamps make it well suited for on-site troubleshooting, outlet labeling, and reconciling cable runs in tight bundles.

Professionals who require advanced tone injection for live high-voltage circuits or detailed mapping of multi-pair telecom trunks should consider higher-end tracers with more specialized features. Hobbyists and occasional users will still find it useful, but should be comfortable replacing small LR44 button cells in the receiver over time.

Pros & Cons

Pros

• Wide set of adapters and clamps included, which increases compatibility with common cable types.
• Both audible and visual signals provide clear confirmation when identifying a single wire.
• Adjustable sensitivity helps distinguish a target conductor in closely routed bundles.
• Comes with batteries so it is ready to use on delivery.

Cons

• Receiver uses LR44 button cells which may require more frequent replacement than standard rechargeable options.
• Not intended for contact testing of live high-voltage mains; it is a tracing tool rather than a full electrical tester.

Specifications

Brand	Sperry Instruments
Model	ET64220 Wire Tracker
Compatible Cables	Coax, CAT 5, speaker and phone wire
Adapter Plugs	RJ-45, RJ-11, coax plus automotive fuse blade and insulated clamps
Indication	Audible and visual
Power	Transmitter: (2) AAA; Receiver: (4) LR44 (included)

Our Verdict

The Sperry ET64220 is a practical, reasonably priced wire tracer for A/V and network installers who need fast, confident identification of individual runs across coax, CAT 5, speaker and phone wiring. It packs versatile adapters, clear dual feedback and adjustable sensitivity into a ready-to-use kit, making it good value for technicians who prioritize portability and straightforward operation.

Frequently Asked Questions

Does it work out of the box?
Yes; both transmitter and receiver include the batteries needed for immediate use.

Which cables will it trace?
It traces coax, CAT 5, speaker and phone wires using the included RJ-45, RJ-11 and coax adapters plus clamps.

Can it identify a single wire in a bundle?
Yes; the adjustable sensitivity is designed to positively identify a single conductor when multiple wires are routed closely together.