RJ45 Cable Tester Kit with LAN Scout Jr. 2 - Complete Installer Kit

In this review of the Klein Tools 80072 RJ45 Cable Tester Kit the bottom line is simple: this is a practical, all-in-one kit for technicians and serious DIYers who need a reliable way to terminate and verify data cables on site. The reviewer found the kit most valuable for testing terminated CAT5e, CAT6 and CAT6A runs and speeding installations thanks to Klein's Pass-Thru connectors, while the large backlit LCD and straightforward wiremap results make troubleshooting quick even in dim spaces.

Key Features

• Complete kit: Includes the LAN Scout Jr. 2 tester, a coax crimper/stripper/cutter and 50 pass-thru modular plugs so installers have the common tools needed for data work in one package.
• Multi-cable testing: Tests terminated CAT5e, CAT6 and CAT6A RJ45 cables and patch cords, giving clear pin-to-pin wiremap results for open, short, miswire and split-pair faults.
• Large backlit LCD: The sizable illuminated display makes it easy to read pinouts and fault indicators in low-lit closets or basements.
• Pass-Thru connectors: Klein exclusive pass-thru plugs let conductors pass through the connector for visual order verification, which reduces prep time and improves termination consistency.
• All-in-one crimper: The coax crimper/stripper/cutter handles paired-conductor data cables and common connector types so you can strip, cut and crimp without switching tools.

Who It's For

This kit suits network installers, field technicians and advanced home users who terminate and test data cabling regularly and value speed and consistency. The combination of a handheld tester with pass-thru plugs and a multi-function crimper shortens the workflow for creating and verifying patch cords and in-wall terminations.

Those who only test cables occasionally or prefer separate specialty tools for coax or fiber might find parts of the bundle more than they need; for pure lab testing or advanced certification beyond a basic wiremap, a dedicated certifier would be more appropriate.

Pros & Cons

Pros

• Quality build and simple operation make the tester easy to use for troubleshooting CAT6 runs.
• Pass-thru connectors and the crimper/stripper reduce termination time and improve consistency.
• Large backlit LCD displays clear pin-to-pin results even in dim work areas.

Cons

• Bundle is focused on RJ45/pass-thru workflows and is not a substitute for a full certification tester when formal cert reports are required.

Specifications

Brand	Klein Tools
Kit contents	LAN Scout Jr. 2 tester, coax crimper/stripper/cutter, 50 pass-thru modular plugs
Tested cable types	CAT5e, CAT6, CAT6A (RJ45) and patch cords
Display	Large backlit LCD showing pin-to-pin wiremap results
Fault detection	Open, short, miswire, split-pair, cross-over and shield
Crimper functions	Wire stripping, crimping and cutting for paired-conductor data cables

Our Verdict

The Klein Tools 80072 kit is a good-value, professional-focused bundle that combines a dependable RJ45 tester with a versatile crimper and pass-thru plugs to speed installations. It is ideal for installers who need fast, reliable terminations and clear troubleshooting without the cost of a certifier, and it delivers consistent results and time savings on site.

Frequently Asked Questions

Can this tester check CAT6A cables?
Yes, the LAN Scout Jr. 2 in this kit tests CAT5e, CAT6 and CAT6A RJ45 terminated cables and patch cords for wiring faults.

Do the pass-thru plugs really save time?
Yes, the Klein exclusive pass-thru connectors allow wires to pass through for visual order confirmation, which reduces prep work and speeds crimping and verification.

Is this a certification tool?
No, this kit provides wiremap testing and reliable terminations but it is not a full certification tester for formal certification reports.