--- product_id: 535580351 title: "Visual Fault Locator Fiber Optic – Rechargeable VFL Tool Kit – Retractable Head Fits SC FC ST – Optical Laser Light Pen Fiber Tester with Protective Case and LC Adapter" brand: "sysotek" price: "€ 71.35" currency: EUR in_stock: false reviews_count: 13 category: "Sysotek" url: https://www.desertcart.pt/products/535580351-visual-fault-locator-fiber-optic-rechargeable-vfl-tool-kit-retractable store_origin: PT region: Portugal --- # USB-C rechargeable battery, all-day power Bright 1mW visible red laser for precise fault detection Durable metal body with retractable head, pocket-ready Visual Fault Locator Fiber Optic – Rechargeable VFL Tool Kit – Retractable Head Fits SC FC ST – Optical Laser Light Pen Fiber Tester with Protective Case and LC Adapter **Brand:** sysotek **Price:** € 71.35 **Availability:** ❌ Out of Stock ## Summary > 🔴 Light up your fiber troubleshooting game with precision and power! ## Quick Answers - **What is this?** Visual Fault Locator Fiber Optic – Rechargeable VFL Tool Kit – Retractable Head Fits SC FC ST – Optical Laser Light Pen Fiber Tester with Protective Case and LC Adapter by sysotek - **How much does it cost?** € 71.35 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/535580351-visual-fault-locator-fiber-optic-rechargeable-vfl-tool-kit-retractable) ## Best For - sysotek enthusiasts ## Why This Product - Trusted sysotek brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Unstoppable Power:** USB-C rechargeable battery keeps you working all day without downtime. - • **Pinpoint Precision:** Bright 1mW red laser light traces fiber faults clearly—even in well-lit environments. - • **Built for the Field:** Rugged metal body and retractable head protect your tool from drops and dust—ready for any site. - • **Compact & Professional:** Lightweight, pocket-sized design with protective case—your essential fiber optic sidekick. - • **Universal Compatibility:** Fits SC, FC, ST connectors plus LC adapter for every fiber job on your list. ## Overview Sysotek’s Rechargeable Visual Fault Locator is a professional-grade fiber optic tester designed for technicians who demand reliability and efficiency. Featuring a bright 1mW red laser, USB-C rechargeable battery, and broad connector compatibility (SC, FC, ST, LC), this rugged metal-bodied tool excels in identifying breaks and faults in single-mode and multimode fibers. Compact, durable, and field-ready with a retractable head and protective case, it’s the must-have fiber optic tester for seamless installation, maintenance, and troubleshooting. ## Description Product description CAREFULLY CONSTRUCTED. PRECISELY ENGINEERED. Sysotek's fiber optic rechargeable VFL tool kit is designed for reliable performance. This fiber light tester is essential for testing fiber cables, whether with fiber patch cords or alongside an OTDR or power meter. The red light fiber tester ensures your safety at 1mW. The red light fiber tester is portable and efficient, making it a must-have. The VFL fiber optic unit is perfect for fiber locator tasks. Universal connector fits SC, ST, FC, and LC. FTTH, FTTP, or FTTB. Single mode or Multimode Review: Best Fiber Optic Visual Fault Locator - I’ve been working with fiber optics off and on for a while now and just picked up this fiber optic visual fault locator, and honestly, I’m super impressed. If you’re like me and constantly dealing with cable issues and trying to troubleshoot stuff this tool is a lifesaver. Right away I noticed when I picked it up you can tell the VFL feels solid. It’s not one of those cheap plasticy tools that you feel like is gonna snap in half after one drop. It’s got a good weight to it. I’ve dropped it once accidentally, and i can't even tell. It’s super comfortable to hold, and perfect size and it fits in pocket easily or i can always tuck it away on a panel. The best feature is its rechargeable and the battery lasts long time. Uses USB c and I've used different ones to charge it no problem. I've let my colleague borrow this and he needed it to stay on for long time while he left his site and it works while it's plugged in. I’ve had this out on multiple jobs now, and it hasn’t run out of juice on me yet, which is a BIG plus when you’re in the middle of troubleshooting a huge network or need to travel and don’t have time for your tool to die. Ive used other cheap ones and they time out and anyone who uses these fiber light pens know that feature is horrible and makes them useless. The laser that comes out of it is super bright, so even in somewhat well lit spaces, you can easily see it shining through the fiber cable. The other main feature is that how you turn it on is by twisting it and the head pops out or retracts and doesn't need dust caps and is totally protected when it's off. It has Super nice hard protective shell case. Honestly if you need a vfl and are thinking about this one just do it. What an upgrade to other crap I've used. The laser is bright and I've tested long runs couple miles and no problems. Makes me laugh the advertising of the high powered ones for sale and going these crazy distances which are impossible. Any experienced tech knows that this type of laser light has a max distance in a fiber cable doesn't matter how strong the laser is. A fiber vfl is a lifesaver for troubleshooting fiber networks but its honestly actually essential and this ones all you will ever need. I’ve tried others, but this one’s definitely the best for the price. You get what you pay for. Definitely recommend it and super happy with this purchase. Review: high quality tool - Thank you guys! ## Features - DESIGNED FOR TECHNICIANS – This VFL rechargeable fiber optic visual fault locator is built for fiber technicians to quickly identify breaks, bends, and faults in fiber optic cables and patch cords. It emits a visible red light to trace fiber paths and pinpoint issues during installation, troubleshooting, and maintenance. - RECHARGEABLE & FIELD-READY – Powered by an internal rechargeable battery with USB-C charging, this VFL is always ready for daily field work. Features constant and pulsing light modes plus a built-in LED flashlight to inspect ports, panels, and fiber paths in low-light environments. The VFL Rechargeable is the one the most important tools for any fiber tech. - BROAD FIBER COMPATIBILITY – Designed for real-world fiber work, this VFL supports single-mode and multimode fiber (9/125 µm). The 2.5 mm ferrule fits SC, FC, and ST connectors, and a 1.25 mm LC adapter is included for LC ports, patch panels, and tight-access applications. - BUILT FOR DAILY FIELD WORK – Constructed with a durable metal body, this VFL is designed for repeated use in telecom, network, and fiber splicing environments. Compact and lightweight, it fits easily in a pocket or tool pouch and pairs naturally with other fiber testing tools used on the job. Sysotek’s fiber fault locator integrates seamlessly into any professional fiber tool kit. - PROFESSIONAL & RESPONSIBLE USE – Designed for controlled fiber testing and fault identification in professional environments. Intended for use by qualified technicians following standard job-site practices. Supports reliable troubleshooting while promoting responsible handling to protect users and fiber optic equipment. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0BMY5NNB4 | | Best Sellers Rank | #49,821 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #99 in Network & Cable Testers | | Brand | Sysotek | | Brand Name | Sysotek | | Cable Type | USB | | Color | Silver | | Compatible Devices | Optical Cable | | Connectivity Technology | Optical Cable | | Connector Gender | Male-to-Female | | Connector Type | FC, SC, ST | | Customer Package Type | FFP | | Customer Reviews | 4.2 out of 5 stars 165 Reviews | | Included Components | SC to LC Adapter | | Indoor Outdoor Usage | Indoor | | Item Shape | Round | | Item Weight | 3.39 Ounces | | Manufacturer | Sysotek | | Model | RR01 | | Model Name | RR01 | | Number of Items | 1 | | Number of Pins | 2 | | Other Special Features of the Product | Retractable | | Outer Material | Metal | | Part Number | VFL-TQ-1 | | Recommended Uses For Product | To detect faults in a fiber optic line. Determine continuity. Identify fiber optic connectors or ports Recommended Uses For Product To detect faults in a fiber optic line. Determine continuity. Identify fiber optic connectors or ports See more | | Special Feature | Retractable | | Specification Met | IEC | | UPC | 196852465934 | | Unit Count | 1.0 Count | | Wattage | 1 Milliwatts | ## Product Details - **Brand:** Sysotek - **Connector Type:** FC, SC, ST - **Cable Type:** USB - **Compatible Devices:** Optical Cable - **Special Feature:** Class I Laser ## Images ![Visual Fault Locator Fiber Optic – Rechargeable VFL Tool Kit – Retractable Head Fits SC FC ST – Optical Laser Light Pen Fiber Tester with Protective Case and LC Adapter - Image 1](https://m.media-amazon.com/images/I/71Sqe8HIH3L.jpg) ![Visual Fault Locator Fiber Optic – Rechargeable VFL Tool Kit – Retractable Head Fits SC FC ST – Optical Laser Light Pen Fiber Tester with Protective Case and LC Adapter - Image 2](https://m.media-amazon.com/images/I/71eSauqPP-L.jpg) ![Visual Fault Locator Fiber Optic – Rechargeable VFL Tool Kit – Retractable Head Fits SC FC ST – Optical Laser Light Pen Fiber Tester with Protective Case and LC Adapter - Image 3](https://m.media-amazon.com/images/I/71VzwI+McVL.jpg) ![Visual Fault Locator Fiber Optic – Rechargeable VFL Tool Kit – Retractable Head Fits SC FC ST – Optical Laser Light Pen Fiber Tester with Protective Case and LC Adapter - Image 4](https://m.media-amazon.com/images/I/71SDRVgCKHL.jpg) ![Visual Fault Locator Fiber Optic – Rechargeable VFL Tool Kit – Retractable Head Fits SC FC ST – Optical Laser Light Pen Fiber Tester with Protective Case and LC Adapter - Image 5](https://m.media-amazon.com/images/I/71pFtxpFzVL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Best Fiber Optic Visual Fault Locator *by J***O on April 15, 2025* I’ve been working with fiber optics off and on for a while now and just picked up this fiber optic visual fault locator, and honestly, I’m super impressed. If you’re like me and constantly dealing with cable issues and trying to troubleshoot stuff this tool is a lifesaver. Right away I noticed when I picked it up you can tell the VFL feels solid. It’s not one of those cheap plasticy tools that you feel like is gonna snap in half after one drop. It’s got a good weight to it. I’ve dropped it once accidentally, and i can't even tell. It’s super comfortable to hold, and perfect size and it fits in pocket easily or i can always tuck it away on a panel. The best feature is its rechargeable and the battery lasts long time. Uses USB c and I've used different ones to charge it no problem. I've let my colleague borrow this and he needed it to stay on for long time while he left his site and it works while it's plugged in. I’ve had this out on multiple jobs now, and it hasn’t run out of juice on me yet, which is a BIG plus when you’re in the middle of troubleshooting a huge network or need to travel and don’t have time for your tool to die. Ive used other cheap ones and they time out and anyone who uses these fiber light pens know that feature is horrible and makes them useless. The laser that comes out of it is super bright, so even in somewhat well lit spaces, you can easily see it shining through the fiber cable. The other main feature is that how you turn it on is by twisting it and the head pops out or retracts and doesn't need dust caps and is totally protected when it's off. It has Super nice hard protective shell case. Honestly if you need a vfl and are thinking about this one just do it. What an upgrade to other crap I've used. The laser is bright and I've tested long runs couple miles and no problems. Makes me laugh the advertising of the high powered ones for sale and going these crazy distances which are impossible. Any experienced tech knows that this type of laser light has a max distance in a fiber cable doesn't matter how strong the laser is. A fiber vfl is a lifesaver for troubleshooting fiber networks but its honestly actually essential and this ones all you will ever need. I’ve tried others, but this one’s definitely the best for the price. You get what you pay for. Definitely recommend it and super happy with this purchase. ### ⭐⭐⭐⭐⭐ high quality tool *by A***L on April 12, 2026* Thank you guys! ### ⭐ Won't take a charge after 1 use *by J***D on February 24, 2026* I used it one time, battery died and it wont take a charge. Has no option for returns or refunds, gets a 1 star from me. Probably wasn't tested before being sent out. ## Frequently Bought Together - Sysotek Visual Fault Locator - Rechargeable Red Light VFL Fiber Optic Tool kit - Retractable Head fits SC FC ST - Optical Laser Light Pen Network Cable Fiber Tester with Protective Case and LC Adapter - Jonard Tools M-216C/EX, Impact Resistant Hex Can Wrench with 7/16" and 3/8" Hex Sockets and Ergonomic Handle, 1" Diameter , 7" Length, Outer - D YEDEMC Fiber Optic Cable Tester - Portable Optical Fiber Power Meter with Universal FC/SC/ST Interface and Built-in 2Mw Visual Fault Locator (OPM-VFL-1) --- ## 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.pt/products/535580351-visual-fault-locator-fiber-optic-rechargeable-vfl-tool-kit-retractable](https://www.desertcart.pt/products/535580351-visual-fault-locator-fiber-optic-rechargeable-vfl-tool-kit-retractable) --- *Product available on Desertcart Portugal* *Store origin: PT* *Last updated: 2026-06-18*