Klein Tools VDV501-851 Cable Tester Kit with Scout Pro 3: Ethernet, Data, Coax & Phone

Meet the Klein Tools VDV501-851 Cable Tester Kit with Scout Pro 3, a professional-grade tool designed for field technicians who install and verify voice, data, video, and mixed cable runs. The kit emphasizes reliability, clarity, and quick verification, helping you confirm installations with confidence while avoiding guesswork.

The Scout Pro 3 tester locates and tests voice (RJ11/12), data (RJ45), and video (coax F-connector) terminated cables. It can measure cable length up to 2000 feet (610 m), providing precise measurements for routing, labeling, and future maintenance. This makes it suitable for installers who need clear, actionable feedback on cable runs in varying environments.

Reading results is simple thanks to the backlit LCD display. The unit shows cable length, wiremap, cable ID, and test outcomes, enabling easy interpretation in dim rooms, under truck lighting, or on crowded job sites. The interface is designed to minimize confusion and speed up verification during busy workdays.

Beyond basic testing, the kit supports thorough fault detection. You can verify Open, Short, Miswire, or Split-Pair faults, offering precise indicators of where a problem originates in a installation or retrofit. This level of detail helps you plan corrective actions without re-testing multiple times.

The workflow for tracing and organizing cables is enhanced by compatible tools and remotes. A multi-style tone generator (sold separately as VDV500-123) aids tracing of cables, wire pairs, and individual conductors, simplifying tasks in bundles or behind walls. Hub Blink mode identifies port locations on a hub or switch, speeding up network diagnostics and equipment mapping.

For organization, LanMap and CoaxMap Location Remotes (5 each) allow you to map and identify multiple cable runs in a single step, boosting efficiency on complex installations. The kit combines a legacy of Klein Tools precision with a layout designed for field adaptability, making it easier to document routes, verify connectivity, and plan future upgrades.

What you get in the starter kit includes the Scout Pro 3 tester, five LanMap remotes, five CoaxMap remotes, and a rugged design built to withstand job-site conditions. While the tool offers powerful capabilities, actual results depend on proper usage and compatible accessories. This description highlights capabilities and typical workflows to help you assess fit for your projects.

Key capabilities

• Tests voice (RJ11/12), data (RJ45), and video cables with clear results
• Measures cable length up to 2000 feet (610 m)
• Detects Open, Short, Miswire, and Split-Pair faults
• Backlit display shows length, wiremap, ID, and test outcomes
• Supports cable tracing with an optional tone generator

Kit contents and mapping remotes

• LanMap Location Remotes (5) for multi-cable run mapping
• CoaxMap Location Remotes (5) for coax run mapping
• Hub Blink mode for quick port identification

Note: This description focuses on capabilities and typical workflows rather than guaranteed results.