CK-Tools Cable Tester Review

Who is the CK-Tools Cable Tester For?

The CK-Tools cable tester is designed for electricians, low-voltage installers, and IT technicians who need a quick way to verify continuity and wiring configuration on Ethernet (RJ45) and telephone (RJ11) cables. It is a basic continuity tester, not a certification tool, making it ideal for troubleshooting patch cables and installed runs in residential and commercial settings.

Owner reviews on Amazon and electrical trade forums highlight its simplicity and rugged build. Users appreciate the clear LED indicators and the included remote unit for testing cables from both ends. It is a budget-friendly alternative to more expensive testers from Fluke or Klein, with many owners noting it performs reliably for basic checks.

Performance and Accuracy

The CK-Tools tester uses a simple LED sequence to indicate continuity and correct wiring pairs. For RJ45 cables, it checks all eight wires and displays a pass/fail pattern. For RJ11, it checks four wires. The 3-in-1 model adds BNC coaxial cable testing, useful for CCTV and legacy video systems.

Aggregated reviews from Amazon and Toolstation give the 2-in-1 model an average rating of 4.5 stars from over 500 ratings. Common praise includes its accurate indication of crossed wires and shorts. A few users noted that the LED brightness could be higher in direct sunlight, but most found it adequate for indoor use.

Build Quality and Durability

CK-Tools is known for making tools that withstand job site abuse. The cable tester has a hard plastic casing with a rubberized grip area. The remote unit is similarly robust. The 9V battery compartment is secure, and the RJ45/RJ11 ports are reinforced to prevent cracking from repeated plug insertions.

Owner feedback indicates the tester survives drops from ladders and workbenches without issue. The included carrying case helps protect it during transport. CK-Tools offers a standard 1-year warranty, which is typical for this price category.

Alternatives to CK-Tools

For professional network installers who need tone generation and wiremap length measurement, the Klein VDV501-809 Scout Pro 3 is a step up. It offers a remote unit and a built-in tone generator for tracing cables in walls.

For advanced diagnostics and certification, the Fluke Networks MT-8200 MicroScanner is the industry standard. It provides wiremap, length, and distance to fault measurements. However, it costs significantly more than the CK-Tools tester.

For basic budget needs, the iMBAPrice RJ45/RJ11 tester is a cheaper alternative, but reviews indicate lower build quality and less reliable LED indicators compared to CK-Tools.

What to Check Before Buying a Cable Tester

First, ensure the tester supports the cable types you work with. Most basic testers handle RJ45 and RJ11. If you work with BNC coaxial cables, look for a 3-in-1 model. Second, check if a remote unit is included. A remote unit is essential for testing installed cables from both ends. Third, consider if you need tone generation for tracing cables behind walls. Basic testers like CK-Tools do not include a tone generator.

Fourth, look at the battery type. Most use a standard 9V battery, which is easy to replace. Fifth, read owner reviews for real-world reliability. Basic testers can have false positives or dim LEDs. Finally, consider the warranty. A 1-year warranty is standard, but some brands like Klein offer longer coverage.

Mistakes to Avoid When Using a Cable Tester

A common mistake is not checking the battery before testing. A low battery can cause false readings. Always replace the 9V battery if the tester seems sluggish. Another mistake is testing a cable that is not properly terminated. Ensure both ends of the cable have connectors securely attached before testing.

Third, avoid using a basic continuity tester on live circuits. These testers are not designed for voltage testing and can be damaged. Fourth, do not rely solely on the LED pattern for complex faults. For intermittent faults, a more advanced tester with a tone generator or TDR function is needed. Finally, store the tester in its case to prevent dust and debris from blocking the ports.