Can you test bnc cables with this. if so , do i need to buy adapters to do so??

I agree. If you use a bnc to rg59 f-type connector and use the connectors with the kit that will give you the connectivity you need.

Can you use hub blink on a poe switch?

Although the instructions say "NOTE: DO NOT attempt to use Hub Blink function when connected to a Power over Ethernet (PoE) active port", a switch will not apply PoE power unless it first detects a PoE compatible device. We tested the Klein Scout Pro 3 tester hub blink tool on our PoE switch and it worked fine.

Can someone confirm if this will test cables with a bnc connector or sdi cables?

Unit ships with adapters to test Coax (RG5x/6x) and Ethernet. You would need to purchase an RG to BNC adapter (which cost about $1 US each). Klein may have a version that ships with BNC adapters. But I, personally did not choose that option nor do I remember the alternate options, offhand.

What is supposed to go in the open slot in the case below the test unit? Have tone receiver that goes to the left, what goes in the rectangle cutout?

Not the premium tone generator (with clips) in the VDV500-820 probe kit. Only the toner wand fits in the left cutout.

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Description

🚀 Elevate your network game with precision and speed!

GLOW GO DISPLAY - Backlit LCD ensures you never miss a detail, even in dimly lit server rooms.
ALL IN ONE CABLE MASTERY - Test voice, data, and video cables seamlessly with one versatile kit.
MULTI CABLE MAPPING MAGIC - Map and ID multiple cable runs with 5 locator remotes—stay organized and ahead.
PRECISION LENGTH TRACKING - Pinpoint cable lengths up to 2000 feet for flawless installations.
FAULT FINDER EXTRAORDINAIRE - Identify open, short, miswire, and split-pair faults before they become headaches.

The KLEIN TOOLS VDV501-851 Cable Tester Kit with Scout Pro 3 is a professional-grade, battery-powered starter kit designed for comprehensive testing of voice, data, and video cables. It measures cable length up to 2000 feet, detects a wide range of cable faults, and features a backlit LCD for easy reading. Equipped with 5 locator remotes, it enables efficient multi-cable run mapping and hub port identification, making it an essential tool for network managers and technicians.

Specifications

Brand	KLEIN TOOLS
Power Source	Battery Powered
Style	Starter Kit
Color	Yellow
Item Weight	1.12 Pounds
Item dimensions L x W x H	6.9 x 3.2 x 1.5 inches
Min. Operating Voltage	9 Volts
Upper Temperature Rating	60 Degrees Celsius
Maximum Operating Voltage	66 Volts (DC)
UPC	092644692260
Manufacturer	Klein Tools
Global Trade Identification Number	00092644692260
Part Number	VDV501-851
Item Weight	1.12 pounds
Product Dimensions	6.9 x 3.2 x 1.5 inches
Item model number	VDV501-851
Batteries	1 9V batteries required.
Is Discontinued By Manufacturer	No
Size	Starter Kit
Finish	Brushed
Material	Blend
Pattern	Cable Tester
Shape	Rectangular
Item Package Quantity	1
Special Features	Measures Cable Length; Backlit LCD; Hub Blink
Included Components	Cable Tester Kit with Scout® Pro 3 Tester, Remotes, Adapter, Battery
Batteries Included?	No
Batteries Required?	Yes
Battery Cell Type	Alkaline

Reviews

T**.

Great tool, easy to use, nothing can go wrong with Klein tools

It works like a charm, I recommend it, professional. If you only have to test couple of Ethernet cables go for something cheaper unless you like nice tool and it is one of them.

5.07.2025

J**P

I am in"Klien"ed to say A+

Perfect tool for the job. Does what it says it does! Perfect amount. Perfect value.Perfect shipping. Highly recommend.

20.07.2025

M**H

Worth it if you are doing your own home networking

Works well, love the tracing feature it has with the other adaptors. Was able to trace all cables in my house and test a few cables I made would recommend well built

4.09.2025

J**N

Another quality Klein product, working for me

Well-built and easy to use. Has already helped me identify dodgy patch cables. Next project is to identify coax cables from old cable install to repurpose for POE for outdoor IP POE cameras. Arrived in great condition. The packaging is made of particularly tough plastic so you will need utility scissors to actually get it out of the packaging.

18.05.2025

L**E

Perfect!

Great price and allowed me to track my problem instantly!!

5.07.2025

A**R

Review

Great design easy-to-use nice size fits in my hands perfect, works good so far definitely recommend to others

16.06.2025

M**K

Great simple Ethernet cable tester

I bought this to do QA on the Cat6 Ethernet cables I ran under my house, and it worked very well for that. I had very few problems, but when I did, this tester let me know early on and saved me headaches later. I'm glad I bought it.

14.05.2025

E**N

Good Quality Comes At A Cost

This tool was able to detect an issue in an Ethernet wire that my other cheaper unit said had no issues. Very impressed with its capabilities.

15.06.2025

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