--- product_id: 1098168 title: "General Technologies Corp GTC FF310 Short and Open Circuit Finder and Tracer , Grey" brand: "gtc" price: "£197.58" currency: GBP in_stock: true reviews_count: 13 category: "Gtc" url: https://www.desertcart.co.uk/products/1098168-general-technologies-corp-gtc-ff310-short-and-open-circuit-finder store_origin: GB region: United Kingdom --- # 6-42V DC voltage range 8-inch flexible probe 25 hrs battery life General Technologies Corp GTC FF310 Short and Open Circuit Finder and Tracer , Grey **Brand:** gtc **Price:** £197.58 **Availability:** ✅ In Stock ## Summary > ⚡ Trace Smarter, Not Harder – Stay Ahead in Every Circuit! ## Quick Answers - **What is this?** General Technologies Corp GTC FF310 Short and Open Circuit Finder and Tracer , Grey by gtc - **How much does it cost?** £197.58 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/1098168-general-technologies-corp-gtc-ff310-short-and-open-circuit-finder) ## Best For - gtc enthusiasts ## Why This Product - Trusted gtc brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Flexible Reach:** 8-inch probe navigates tight, congested spaces with ease. - • **Precision Wire Tracing:** Non-contact tech lets you find wires without piercing or dismantling. - • **Instant Circuit Feedback:** LEDs and variable audio signals quickly identify open or short circuits. - • **Surge-Protected Durability:** Built-in overload and surge protection for reliable, long-term use. - • **Universal Voltage Compatibility:** Works seamlessly with 6 to 42 volts, including new-gen 42V vehicle systems. ## Overview The GTC FF310 is a professional-grade short and open circuit finder designed for modern vehicles and electrical systems. Featuring non-contact wire tracing technology, an 8-inch flexible probe, and compatibility with 6 to 42V DC systems, it offers precise diagnostics without wire piercing. Its surge protection and 25-hour battery life ensure durability and extended use, making it an essential tool for efficient circuit troubleshooting in complex environments. ## Description Help you track and trace wiring to find hidden wires and circuit faults (such as corroded or worn-out cables). Review: Honest dealer and price and quality - Item as shown, unit seems to work ok boys are using it, good price and delivery good no damage. Review: Product works as described. - The FF310 is compact but feels like a quality tool in the hand. Reading the instructions is a must to get a good baseline of the tools functionality. I used it to "test" trace a wire in the interior lighting circuit of a 2005 Jeep Grand Cherokee using the blades in placemnet of the lighting fuse in the main fuse box and I was able to follow the wire without taking anything apart, I did have to use the receiver on its hightest sensitivity setting and it does take a little practice to understand how to maneuver the receivers probe but it worked well none the less. I also used on the same vehicle using the process of disconnecting the RR brake wire at the light and applying 12v to one lead of the transmitter and attaching the other lead of the transmitter to the wire from the brake pedal and it worked just as it did on video. Great tool, I see many uses for it. ## Features - 42V ready for use in new generation vehicles with mixed or single 42 volt systems and operates on DC voltages from 6 to 42 volts - Internally protected against power surges and overloads and has an 8 inches flexible probe for hard to reach or congested places with auto polarity on transmitter with 5 amps leads and alligator clips - Transmitter and Receiver LEDs show open or short circuit conditions and variable audio or visual signal provides fast feedback on the circuit or wire proximity - Adjustable sensitivity for all tracing situations coupled with non-contact technology and therefore wire piercing is not required, non-contact technology - Wire tracing is possible even inside bundles, conduits, behind panels and under carpets or upholstery; Battery life: approx. 25 hrs ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B000XVZ8F8 | | Best Sellers Rank | #474,063 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #533 in Circuit Testers | | Brand | GTC | | Customer Reviews | 4.4 4.4 out of 5 stars (300) | | Date First Available | July 7, 2004 | | Is Discontinued By Manufacturer | No | | Item Weight | 1.78 pounds | | Item model number | FF310 | | Manufacturer | General Technologies Corp. | | Manufacturer Part Number | FF310 | | Model | FF310 | | Product Dimensions | 9.75 x 8.87 x 2.5 inches | | Special Features | Tracks wires through panels | ## Images ![General Technologies Corp GTC FF310 Short and Open Circuit Finder and Tracer , Grey - Image 1](https://m.media-amazon.com/images/I/8118TUytJiL.jpg) ![General Technologies Corp GTC FF310 Short and Open Circuit Finder and Tracer , Grey - Image 2](https://m.media-amazon.com/images/I/51ehbtO4P2L.jpg) ![General Technologies Corp GTC FF310 Short and Open Circuit Finder and Tracer , Grey - Image 3](https://m.media-amazon.com/images/I/61T6Nfuug0L.jpg) ![General Technologies Corp GTC FF310 Short and Open Circuit Finder and Tracer , Grey - Image 4](https://m.media-amazon.com/images/I/81wBf2ubyoL.jpg) ## Questions & Answers **Q: can i use it to pinpoint exactly where i have a short in my a/c unit for my car** A: Yes you can. This tool has saved me lots of time. If your short is under the dash area it will be harder to pinpoint cause it is hard to reach in that area. **Q: can this be used on a single wire to send the signal or does it need to be used at the fuse panel?** A: Yes. It can be used on a single wire, as long as you connected series. **Q: can you use this on a wie that's un powered to find a break or short** A: yes we can the transmitter power the line **Q: can it be used to find a short in de-energized wiring in wall of a house** A: I would have say no because in a car there is 12 DC volts in line for power to find the break..this device is made to take up to 42 DC volts not AC volts like found in a house...Maybe you could put 12 volts DC through your house wiring and use this tool to find the short,,, BUT MAKE SURE YOU HAVE NO FEED BACK TO YOUR MAIN POWER...I would be very carefull.... P.S. also I don't know if this tool would work going through walls....because doing car wiring you have to keep the tool right on the wiring it self...wall might be to thick... ## Customer Reviews ### ⭐⭐⭐⭐⭐ Honest dealer and price and quality *by H***1 on September 11, 2025* Item as shown, unit seems to work ok boys are using it, good price and delivery good no damage. ### ⭐⭐⭐⭐⭐ Product works as described. *by J***N on October 21, 2014* The FF310 is compact but feels like a quality tool in the hand. Reading the instructions is a must to get a good baseline of the tools functionality. I used it to "test" trace a wire in the interior lighting circuit of a 2005 Jeep Grand Cherokee using the blades in placemnet of the lighting fuse in the main fuse box and I was able to follow the wire without taking anything apart, I did have to use the receiver on its hightest sensitivity setting and it does take a little practice to understand how to maneuver the receivers probe but it worked well none the less. I also used on the same vehicle using the process of disconnecting the RR brake wire at the light and applying 12v to one lead of the transmitter and attaching the other lead of the transmitter to the wire from the brake pedal and it worked just as it did on video. Great tool, I see many uses for it. ### ⭐⭐⭐⭐ IF IT STOPS DONT JUNK IT GET CIRCUIT FINDER *by Q***R on May 4, 2014* I rated it in that manner cause I had to figure it out ! but all in all I got it and it took me 2 days but I found the problem it worked well only wish it was louder it did work fine I would not hesitate to use it over n over ,I think I would still be looking for the short still if I did not have it how ever I have a different type I tried using and the results was a waist of time I first received it and in couple days baring the weather it located it and I was up and running . May I add this was a 92 ranger it stopped cold for no reason known it had fuel and all it did turn over /no start so for those that have same problem this short was down near transmission in wire cluster hope it will help some one ,sorry for the inset but if it helps not to junk it out ,buy a GTC FF310 finder ## Frequently Bought Together - General Technologies Corp GTC FF310 Short and Open Circuit Finder and Tracer , Grey - GTC063 Fuse Socket Connector Kit by GTC, General Technologies Corp --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.co.uk/products/1098168-general-technologies-corp-gtc-ff310-short-and-open-circuit-finder](https://www.desertcart.co.uk/products/1098168-general-technologies-corp-gtc-ff310-short-and-open-circuit-finder) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-06-03*