---
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: "$2364"
currency: MXN
in_stock: true
reviews_count: 8
category: "Sysotek"
url: https://www.desertcart.mx/products/535580351-visual-fault-locator-fiber-optic-rechargeable-vfl-tool-kit-retractable
store_origin: MX
region: Mexico
---

# 1800mAh rechargeable battery USB-C fast charging 1mW Class I laser power 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:** $2364
**Availability:** ✅ In Stock

## Summary

> 🔴 Light up your fiber faults before they light up your inbox!

## 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?** $2364 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.mx](https://www.desertcart.mx/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

- • **Rugged & Pocket-Ready:** Durable metal body with retractable head and protective hard-shell case—built to survive drops and fit your everyday carry.
- • **Endless Power On-the-Go:** Rechargeable 1800mAh battery delivers up to 40 hours standby and works while charging—no more dead tools mid-job.
- • **Universal Compatibility:** Retractable 2.5mm head plus bonus 1.25mm LC adapter fits SC, FC, ST connectors for seamless network testing.
- • **Precision Laser Detection:** Pinpoint fiber faults with a bright, compliant 1mW red laser—safe and reliable for all fiber types.
- • **Dual Laser Modes + LED Flashlight:** Switch between constant and pulsing laser modes plus an integrated LED flashlight for versatile troubleshooting in any environment.

## Overview

The Sysotek Visual Fault Locator is a professional-grade, rechargeable fiber optic tester featuring a bright 1mW Class I red laser, USB-C charging, and a retractable head compatible with SC, FC, ST, and LC connectors. Designed for telecom and network pros, it offers up to 40 hours standby, dual laser modes, and a rugged metal build with a protective case—ensuring reliable, on-the-go fault detection and compliance with safety standards.

## Description

Buy 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: Network & Cable Testers - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

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: Perfect For My Needs - This new technology is really great! All the qualities of a standard visual fault locator based on my use so far, plus more! - Small/Compact, but with a little weight to make it feel 'quality' built. (The retractable head keeps it compact) - When I twist the unit on/off, the connector head pops in and out. Being able to retract it keeps it safe from dirt and/or damage when I accidentally dropped it. - Rechargeable, really handy as well, so I don't have to carry spare batteries. - The charge lasts a long time (although I haven't let it fully run down). And' there is a battery indicator that shows remaining life. - The USB-C charging port is a definite bonus, and there's a small charging cable included. - It has a fabric covered 'hard-shell' protective pouch (kind of like the kind you get for a pair of really good eye glasses) that the unit (and accessories) fits in nicely. This is a sleek little unit and will fit easily into a man or women's coat or vest pocket. I'd definitely recommend it based on my use so far.

## Features

- DESIGNED FOR TECHS - The Visual Fault Locator or VFL fiber tester is essential for fiber optic technicians, using a fiber laser to emit bright red light that helps detect faults like breaks and bends in cables and fiber patch cords. Easily connect fiber optic patches and plug in to optical panels. 2.5mm head works with any 9/125um, single mode, multimode, APC or UPC cable. Bonus 1.25mm LC adaptor included. Perfect for techs or electrician tools set. The Fiber Laser pen ensures effective maintenance of optical networks like FTTH FTTX or FTTN and more!
- RECHARGEABLE VFL - Save money with a 1800mAh lithium ion battery and never look or replace batteries again. Offering up to 40 hours of standby and can be used while charging. LED battery monitor and USB-C charging. Ideal for techs and fiber testers who use fiber optic light meters or in any situation where optical cables or network ports need to be identified or breaks in fiber lines need to be seen. Add the VFL fiber optic light source to you fiber tester tool kit.
- LED FLASHLIGHT - CONSTANT & PULSING LASER MODE - Featuring an LED flashlight and two laser modes: constant and flashing. Easily inspect patch panel ports in hard to see locations like tech hubs, network centers, and data centers. Sysoteks redlight pen can identify faults in both single mode and multimode fiber. Essential for fiber optic cables and Ethernet connections. Versatile design makes it a must-have to any set of electrical tools or fiber optic testing equipment.
- DURABLE & PORTABLE - Durable metal construction designed for commercial use. Compact & lightweight tool is perfect for telecom or electrical and fiber splicing professionals, easily fitting into your pocket or network tool kit. Superior to others, it complements OTDRs, power meters, fusion splicers, fiber splicer & strippers and fusion splicing tools. Essential for accurate fiber optic light meter readings and working seamlessly with fiber cleavers identifying proper cuts or misaligned splices.
- SAFETY & COMPLIANCE - Class I 1mW laser - Compliant with work, health, and safety authorities. Sysotek designed this VFL pen with case to ensure you meet all job site regulations. The legal power limit provides a bright red light while keeping you, others, and fiber optic equipment safe. Ideal for pinpointing faults in optic cables. Our VFL fiber light is a must-have tool for any technician's toolkit. Class 1, 1mW is the industry standard for a reason. Be compliant, be safe!

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0BMY5NNB4 |
| Best Sellers Rank | #24,684 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #45 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 | 4.0 out of 5 stars 144 Reviews |
| Included Components | SC to LC Adapter |
| Indoor Outdoor Usage | Indoor |
| Item Height | 1.06 inches |
| 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 | Class I Laser |
| Outer Material | Metal |
| 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 | Class I Laser |
| Specification Met | Class I Laser |
| 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)

## 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.

### ⭐⭐⭐⭐⭐ Perfect For My Needs
*by K***. on October 16, 2023*

This new technology is really great! All the qualities of a standard visual fault locator based on my use so far, plus more! - Small/Compact, but with a little weight to make it feel 'quality' built. (The retractable head keeps it compact) - When I twist the unit on/off, the connector head pops in and out. Being able to retract it keeps it safe from dirt and/or damage when I accidentally dropped it. - Rechargeable, really handy as well, so I don't have to carry spare batteries. - The charge lasts a long time (although I haven't let it fully run down). And' there is a battery indicator that shows remaining life. - The USB-C charging port is a definite bonus, and there's a small charging cable included. - It has a fabric covered 'hard-shell' protective pouch (kind of like the kind you get for a pair of really good eye glasses) that the unit (and accessories) fits in nicely. This is a sleek little unit and will fit easily into a man or women's coat or vest pocket. I'd definitely recommend it based on my use so far.

### ⭐ Won’t charge
*by M***E on June 6, 2025*

1 out of 5 stars – Stopped Working After Light Use I bought this VFL thinking it would be reliable, but it stopped working after about two months with barely any use. I only used it a handful of times on basic jobs, and now it won’t even turn on. Definitely not worth the money if you’re looking for something durable. Disappointed.

## 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)

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*Product available on Desertcart Mexico*
*Store origin: MX*
*Last updated: 2026-02-17*