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 VDV500-920 Wire Tracer Tone Generator and Probe Kit Continuity Tester for Ethernet, Internet, Telephone, Speaker, Coax, Video, and Data Cables, RJ45, RJ11, RJ12

Klein Tools VDV500-920 Wire Tracer Tone Generator and Probe Kit Continuity Tester for Ethernet, Internet, Telephone, Speaker, Coax, Video, and Data Cables, RJ45, RJ11, RJ12

Product ID: 556224862

Details

Brand
KLEIN TOOLS
Color
Multi-color
Item Weight
1.4 pounds
Power Source
Battery
Style
Digital and

📡Dual digital & analog tracing modes

🔌Continuity & polarity LED indicators

🛠️Wire mapping & 60Hz noise filter

VT67769

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Description

🔍 Trace smarter, not harder — stay connected with Klein’s ultimate cable detective!

ISOLATE WITH PRECISION - Analog mode isolates individual wire pairs for flawless voice, data, and video cable tracing.
COMPREHENSIVE WIRE MAPPING - Verify pin-to-pin connections and shield detection with built-in wire mapping and a 60Hz filter for noise-free accuracy.
PINPOINT CABLES LIKE A PRO - Digital mode lets you trace active network cables effortlessly, avoiding downtime and guesswork.
SECURE GRIP ON UNSTRIPPED WIRES - Rugged Angled Bed of Nails clips ensure stable contact without stripping, saving time and cable integrity.
INSTANT CONTINUITY POLARITY CHECK - Clear LED indicators provide quick, reliable continuity and polarity results—no second guessing.

The Klein Tools VDV500-920 Wire Tracer Tone Generator and Probe Kit is a versatile, battery-powered tool designed for professional cable tracing and testing. Featuring both digital and analog modes, it accurately locates and isolates Ethernet, telephone, coax, and data cables, even on active networks. With continuity and polarity LED indicators, rugged ABN clips for unstripped wires, and advanced wire mapping capabilities including a 60Hz noise filter, this kit ensures precise diagnostics and efficient troubleshooting in any network environment.

Specifications

ASIN	B0CBW3K469
Best Sellers Rank	#2,551 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #5 in Network & Cable Testers
Brand	KLEIN TOOLS
Brand Name	KLEIN TOOLS
Color	Multi-color
Customer Reviews	4.5 out of 5 stars 174 Reviews
Global Trade Identification Number	00092644583872
Included Components	Digital Tone and Probe Set
Item Dimensions	13.25 x 6.75 x 3 inches
Item Type Name	Digital Tone and Probe Set
Item Weight	1.4 pounds
Item dimensions L x W x H	13.25 x 6.75 x 3 inches
Manufacturer	Klein Tools
Measurement Type	Multimeter
Minimum Operating Voltage	9 volts
Model	A-VDV500-920
Number of Items	1
Part Number	VDV500-920
Power Source	Battery Powered
Specification Met	CE
Style	Digital and Analog
Style Name	Digital and Analog
UPC	092644583872
Unit Count	1 Count
Upper Temperature Rating	85 °C
Warranty Description	Please refer to attached warranty document.

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