STOP GUESSING. FIND THE BAD WIRE.
CircuitTrace Pro™ follows the wire and the tone goes silent the instant it hits the break, short, or bad ground so you fix the real problem instead of replacing one good part after another.
No piercing, no teardown
Cars · Trucks · Trailers · RVs · Boats
Find the fault in minutes
Pinpoints the exact fault
Limited Time Special Offer
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Ordered
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Delivered
Plonksy™ CircuitTrace Pro
Shipping Policy
Shipping Policy
Shipping policy
Order processing takes 1–3 business days before shipment. Once your item/s is dispatched, the estimated delivery time is:
- USA: 5–12 business days
- UK: 5–12 business days
- Australia: 5–12 business days
- Canada: 5–12 business days
- EU: 6–12 business days
- Worldwide: 7–15 business days
For full delivery terms, see our complete Shipping Policy.
Return & refund policy
Return & refund policy
Customers must submit a return request within 10 days from the order's arrival date.
For more details on the return process and conditions, please refer to our complete Return & Refund Policy.
AS SEEN ON
Every Wire. Every Vehicle.
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Cars & Trucks
Diagnose Shorts, Dead Circuits, Parasitic Draws, And Bad Grounds Without Pulling The Dash Apart.
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Trailers
7-Pin Connectors, Running Lights, Breakaway Systems Trace The Fault To The Exact Millimeter.
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Marine & RV
Salt Corrosion, 12V House Systems, Inverter Wiring — The Full 6–24V Range Handles It All.
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Home Wiring
Dead Ethernet In Walls, Broken Doorbell Circuits, Landscape Lighting — No Demo Required.
THE PROBLEM
Sound Familiar?
Three steps. Most people find their first fault in under five minutes.
My Multimeter Says It's Dead. but Where?
You poke test points for an hour. You verify the circuit is open. You still have no idea where the break actually is. So you start pulling things apart.
I Pulled Half the Dash for a Loose Ground.
Hours of teardown. Plastic clips everywhere. One tiny wire with a bad crimp. It takes longer to put it back together than it did to find it.
I Replaced the Fuse, the Relay, the Switch.
Parts that were never broken. Money wasted. The real problem — a short two inches behind a connector — was there the whole time.
It Doesn’t Test. It Tracks.
There's short learning curve most people have it figured out on the first job and find their fault in minutes, not hours.
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Points to the fault, not just the problem
The Tone Dies Right Where The Wire Fails, So You Repair The Inch That's Broken Instead Of Chasing The Whole Harness.
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Traces through the insulation
Non-Contact, No Piercing. It Reads Wires Inside Looms, Conduit, Behind Panels, Under Carpet — Without Cutting Or Splicing A Thing.
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Adjustable sensitivity
Dial It Down In A Tight Bundle To Isolate One Wire, Up For A Long Run. The Right Level Is How You Trace Clean In Congested Areas.
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CircuitTrace
Pro 
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Multimeter
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Test Light
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Shop Visit
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|---|---|---|---|---|
| Pinpoints The Exact Fault Location | ✓ | × | × | × |
| Traces Wire Behind Panels & Looms | ✓ | × | × | × |
| No Wire-Piercing Required | ✓ | × | × | × |
| Audible Tone + LED Guidance | ✓ | × | × | × |
| Usable By A Beginner | ✓ | N/A | × | × |
| Cost | One-Time $39.99 | $20–80 | $10 | $100–300+ |
Client testimonials
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Marcus D
Awesome product! For the price and ease of use. I recently had to repair broken wires on my vehicle and this made it so much easier than using a multimeter. It has two modes to trace a break or to use continuity. The continuity mode helped me much better than the multimeter. Definitely recommend if trying to find issues with your automotive wiring harnesses. Would purchase again.
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Eddie R
Chased a parasitic draw on my F-150 for two weekends straight. Clipped this on, swept the harness, and the tone died right at a rubbed-through wire behind the kick panel. Ten minutes. Should've bought it a year ago.
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Axel B
Works, but give it a minute to learn. First try it beeped on every wire in the bundle. Turned the sensitivity down and it walked me straight to the break. Once you get the dial right it's solid for the money.
Still Have Questions?
We’ve Got Answers!
How is this different from a multimeter or a test light?
How is this different from a multimeter or a test light?
It tracks the wire path and points you toward the fault area fast, instead of making you test multiple points one by one.
Do I need to be an electrician to use it?
Do I need to be an electrician to use it?
No. If you can clip a lead and follow a beep, you can use it. Connect the transmitter to one end of the circuit, run the wand along the wire, and the tone leads you to the fault. Most people trace their first wire within a few minutes.
Do I have to cut or pierce the wires?
Do I have to cut or pierce the wires?
No cutting or piercing is needed. It helps trace wires without damaging insulation.
What vehicles and systems does it work on?
What vehicles and systems does it work on?
It works on most automotive wiring systems, including cars, trucks, trailers, and common electrical harnesses.
What faults can it actually find?
What faults can it actually find?
It can help locate breaks, shorts, open circuits, hidden wire paths, and fault points in wiring.
What if it doesn't work for me?
What if it doesn't work for me?
You can test it step by step and use the sensitivity adjustment to get a cleaner signal.