will it trace a single wire

I just tried it because I wasn't sure, you won't be able to trace the wire in the wall but you will be able to identify a single conductor when you touch the probe to the other end of it.

I need to trace a 12V wire through an RV to determine where it is shorted; is this device appropriate for this purpose?

If you can get to the wire or know where it is running it will work to trace where you are losing power RV walls are pretty thin

Can I use this kit to find a Cat-5 cable behind sheetrock, 2-3 inches at most ? If not, which product does this ?

Not sure. You might be able to if you can connect the tone generator to one end of the Cat5 cable. The signal would be very faint, at best, as this device is made for the probe to actually touch the wire. Not familiar with a tone generator that would work this way, but the Home Depot has a device that will allow you to see through walls to see what's behind it. Sound like that would be more what you need.

Will this test camera wires with rj45's at each end to confirm proper connections

If you just need to test for continuity then you can put an rj45 jack on each end and tone one end and test the other you can see if you have continuity

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KLEIN TOOLS VDV500-820 Tone & Probe PRO Kit zur Kabelortung und Identifizierung

KLEIN TOOLS VDV500-820 Tone & Probe PRO Kit zur Kabelortung und Identifizierung

Product ID: 266301111

Details

Brand
KLEIN TOOLS
Colour
beige
Item weight
581 g
Power source
Battery
Style
Tone & Probe

🎯5 distinct tone cadences for precise wire ID

🔋Battery-powered with 8 AAA batteries included

🔧Rugged Angled Bed of Nails clips for secure grip

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VT57042

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Sold byAmazon VanuatuDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🎯 Trace like a pro, never miss a wire!

READY OUT OF THE BOX - Includes 8 AAA batteries so you can start tracing cables immediately—no extra purchases needed.
SECURE GRIP NO SLIP - Rugged Angled Bed of Nails (ABN) clips ensure a rock-solid connection to wires every time.
PINPOINT WITH PRECISION - Five unique tone cadences let you identify cables faster and with unmatched accuracy.
VERSATILE COMPATIBILITY - Works seamlessly with RJ11 and RJ45 cables, perfect for modern and legacy wiring systems.
TRUSTED PRO GRADE DURABILITY - Built to withstand tough jobsite conditions, this kit is your reliable partner for cable tracing.

The KLEIN TOOLS VDV500-820 Tone & Probe PRO Kit is a professional-grade cable tracing solution featuring five distinct tone cadences and rugged Angled Bed of Nails clips for secure wire attachment. Battery-powered with included AAA batteries, it supports RJ11 and RJ45 cables and is designed for durable, precise wire identification in both analog and digital systems.

Specifications

ASIN	B07VYN98QV
ASIN	B07VYN98QV
Batteries	8 AAA batteries required. (included)
Best Sellers Rank	#17,987 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #27 in Circuit Testers
Brand Name	KLEIN TOOLS
Color	beige
Country Of Origin	China
Country of origin	China
Customer Reviews	4.6 4.6 out of 5 stars (4,340)
Customer reviews	4.6 4.6 out of 5 stars (4,340)
Date First Available	24 August 2019
Department	Unisex-Adult
EU Spare Part Availability Duration	1 Years
Global Trade Identification Number	00092644692192
Included Components	Tone and Probe PRO Kit
Is Discontinued By Manufacturer	No
Item Dimensions	7.6 x 17.8 x 7.6 centimeters
Item Type Name	Cable Tracer with Probe Tone Pro Kit for RJ11 and RJ45 Cables Klein Tools VDV500-820
Item Weight	1.28 Pounds
Item model number	VDV500-820
Manufacturer	KLEIN TOOLS
Manufacturer	KLEIN TOOLS
Measurement Type	Ohmmeter
Minimum Operating Voltage	9 Volts
Model	VDV500-820
Part Number	VDV500-820
Power Source	Battery Powered
Product Dimensions	7.62 x 17.78 x 7.62 cm; 580.6 g
Specification Met	CE marked, RoHS compliant
Style Name	Tone & Probe PRO Kit
UPC	092644692192
Unit Count	1 Count
Upper Temperature Rating	122 Degrees Fahrenheit

Reviews

K**L

quality tool. works well

20.12.2025

A**F

Signal strangt no good

4.03.2023

K**.

Llego en perfecto estado, y funciona a la perfección, lo recomiendo 👌🏻

27.02.2024

A**Z

4.11.2025

G**R

This product worked as advertised! I had to help someone find why they had no power at their outlet. This tool when hooked up to the outlet in question helped me find a hidden outlet (junk hiding it) where the root cause was found. 2.5 hrs later and everything worked as should. This tool is awesome!! Just remember that the power must be off or it will arc / pop. Follow the instructions to the letter and you will be fine

1.02.2026

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VT57042

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In stock

Sold byAmazon VanuatuDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Vanuatu.

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