Stanley Cable Tester Review

The Stanley 77-120 is a basic but effective cable tester that checks continuity on RJ11 (telephone), RJ45 (Ethernet), and coaxial cables. It comes with a remote unit for testing installed cables, and the LED indicators clearly show pass/fail results. Owner reviews on Amazon average 4.2 stars, with many users praising its simplicity and reliability for home network troubleshooting.

However, this tester does not provide detailed wire mapping or identify split pairs, which professional network installers may need. The plastic housing feels durable enough for occasional use but may not withstand daily job site drops. For homeowners setting up basic Ethernet or coax connections, the Stanley 77-120 offers excellent value.

The Klein Tools VDV501-851 Scout Pro 3 is a professional-grade cable tester that provides comprehensive wire mapping for RJ45 and RJ11 cables, plus coaxial testing. It includes five remote identifiers for tracing multiple cables simultaneously, and the large backlit display makes results easy to read in low light. Owner reviews consistently rate it above 4.5 stars, with electricians and network technicians praising its accuracy and build quality.

This tester detects opens, shorts, miswires, and split pairs, which the Stanley 77-120 cannot do. The rubber overmolding protects against drops, and the included carrying case keeps everything organized. For professionals who need reliable diagnostics daily, the Klein Scout Pro 3 justifies its higher cost with superior features and durability.

The Southwire M520-01 is a no-frills cable tester that handles RJ11 and RJ45 cables with basic continuity checking. It is one of the most affordable options on the market, making it suitable for homeowners who rarely need to test cables. The unit includes a remote terminator for testing installed lines, and the LED display is straightforward to interpret.

Owner reviews note that the plastic housing feels less robust than Stanley or Klein models, and the lack of coaxial support limits its versatility. Some users report intermittent false readings on longer cable runs. For the price, the Southwire M520-01 works for simple tasks, but the Stanley 77-120 offers better value for a small price increase.

The iMBAPrice Network Cable Tester is an inexpensive option that supports RJ11, RJ45, and BNC coaxial cables. It includes a remote terminator for testing installed lines and uses a simple LED array to indicate continuity. Many owner reviews highlight its low price as the main advantage, with some users reporting satisfactory results for occasional home use.

However, build quality concerns are common, with several reviews mentioning the remote unit breaking after limited use. The tester does not provide wire mapping or advanced diagnostics. For the same price range, the Stanley 77-120 offers better reliability and includes dedicated coaxial ports without adapters.

The Fluke Networks TS19 is a premium cable tester designed for professional network technicians who require precise diagnostics and multiple cable identification. It supports up to 12 remote identifiers, making it ideal for large installations with many cables. The TS19 provides detailed wire mapping and fault location, and its rugged construction withstands harsh job site conditions.

Owner reviews from network professionals are overwhelmingly positive, citing the TS19 as a reliable tool that saves time on complex troubleshooting. The main drawback is the high cost, which puts it out of reach for most DIY users. Additionally, it does not test coaxial cables, so users needing coax support must carry a separate tester. For professionals who need the best, the Fluke TS19 is unmatched.