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 Wire Tracer Tone Generator and Probe Kit Continuity Tester for Ethernet, Telephone, Speaker, Coax, Video, and Data Cables, RJ45, RJ11, RJ12

Klein Tools VDV500-820 Wire Tracer Tone Generator and Probe Kit Continuity Tester for Ethernet, Telephone, Speaker, Coax, Video, and Data Cables, RJ45, RJ11, RJ12

Product ID: 159799472

Details

Brand
KLEIN TOOLS
Color
Beige
Item Weight
1.3 Pounds
Power Source
Battery
Style
Analog

🎧3.5mm headphone jack for noise reduction

📡5 distinct tone cadences

🔌RJ11/RJ45 plug compatibility

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VT41914

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Details

Brand
KLEIN TOOLS
Color
Beige
Item Weight
1.3 Pounds

Description

🔍 Trace like a pro, fix like a boss — never lose a wire again!

ROCK SOLID WIRE GRIP - Rugged Angled Bed of Nails clips ensure a secure, stable connection every time you trace.
SEAMLESS CONNECTIVITY - Effortlessly connect to Ethernet, telephone, speaker, coax, and data cables with versatile RJ11 and RJ45 plugs.
NOISE FREE DIAGNOSTICS - 3.5mm headphone jack lets you isolate signals in noisy environments—hear what others miss.
PRECISION WIRE TRACING MASTERY - Pinpoint cables up to 1,000 feet with 5 unique tone signals for unmatched accuracy.
CONTINUITY POLARITY CONFIDENCE - Clear LED indicators provide instant, reliable continuity and polarity testing for flawless troubleshooting.

The Klein Tools VDV500-820 Wire Tracer Kit is a professional-grade analog tone generator and probe designed for precise tracing and testing of Ethernet, telephone, speaker, coax, video, and data cables. Featuring 5 distinct tone cadences, secure ABN clips, RJ11/RJ45 compatibility, continuity and polarity testing with LED indicators, and a noise-reducing headphone jack, this compact, battery-powered tool delivers reliable performance up to 1,000 feet—perfect for managers and tech-savvy pros who demand efficiency and accuracy in cable troubleshooting.

Specifications

ASIN	B07VYN98QV
Best Sellers Rank	#3,351 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #4 in Network & Cable Testers
Brand	KLEIN TOOLS
Brand Name	KLEIN TOOLS
Color	Beige
Customer Reviews	4.6 out of 5 stars 4,601 Reviews
Global Trade Identification Number	00092644692192
Included Components	Tone and Probe PRO Kit
Item Dimensions	3 x 7 x 3 inches
Item Type Name	Wire Tracer Kits
Item Weight	1.3 Pounds
Item dimensions L x W x H	3 x 7 x 3 inches
Manufacturer	Klein Tools
Measurement Type	Ohmmeter
Minimum Operating Voltage	9 Volts
Model	VDV500-820
Part Number	VDV500-820
Power Source	Battery Powered
Style	Analog
Style Name	Analog
UPC	092644692192
Unit Count	1.0 Count
Upper Temperature Rating	122 Degrees Fahrenheit
Warranty Description	1 Year Manufacturer

Reviews

G**R

1.02.2026

M**E

1.04.2026

K**T

16.02.2026

I**V

27.04.2026

C**S

11.11.2025

M**S

24.07.2025

A**B

25.04.2026

K**N

3.06.2024

K**L

20.12.2025

A**F

4.03.2023

K**.

27.02.2024

A**Z

4.11.2025

A**T

1.04.2026

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