---
product_id: 543546804
title: "2PCS Visual Fault Locator, VFL Tester Kit - Includes Single Mode 9/125um FC Male to LC Female Adapter and Red Light Pen for Fiber Optic Cable Network Testing"
brand: "gesd"
price: "¥16959"
currency: JPY
in_stock: true
reviews_count: 2
category: "Gesd"
url: https://www.desertcart.jp/products/543546804-2pcs-visual-fault-locator-vfl-tester-kit-includes-single-mode
store_origin: JP
region: Japan
---

# Universal 2.5mm connector compatibility Long-distance red light output Durable aluminum & stainless steel body 2PCS Visual Fault Locator, VFL Tester Kit - Includes Single Mode 9/125um FC Male to LC Female Adapter and Red Light Pen for Fiber Optic Cable Network Testing

**Brand:** gesd
**Price:** ¥16959
**Availability:** ✅ In Stock

## Summary

> 🔍 Illuminate your fiber faults before they illuminate your downtime!

## Quick Answers

- **What is this?** 2PCS Visual Fault Locator, VFL Tester Kit - Includes Single Mode 9/125um FC Male to LC Female Adapter and Red Light Pen for Fiber Optic Cable Network Testing by gesd
- **How much does it cost?** ¥16959 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/543546804-2pcs-visual-fault-locator-vfl-tester-kit-includes-single-mode)

## Best For

- gesd enthusiasts

## Why This Product

- Trusted gesd brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Rugged & Portable Design:** Lightweight pen-style with metal matte finish and ESD protection for field durability.
- • **Complete Kit for Professionals:** Two VFL pens, adapters, carrying bags, and lanyards for on-the-go fiber troubleshooting.
- • **Extended Battery Life & Alerts:** Work uninterrupted with long-lasting power and low battery warnings.
- • **Pinpoint Fiber Faults Instantly:** Detect breaks, bends, and poor connections with precision red light tracing.
- • **Universal Connector Compatibility:** Seamlessly test ST, SC, FC, and LC fiber cables with included adapters.

## Overview

The 2PCS Visual Fault Locator Kit by GESD is a professional-grade fiber optic testing solution featuring long-range red light output, universal 2.5mm connectors compatible with ST, SC, FC, and LC cables, and a rugged aluminum-alloy pen design with ESD protection. Portable and easy to use, it offers continuous and pulse modes, low battery alerts, and comes complete with adapters and carrying accessories—ideal for millennial managers who demand reliable, efficient network diagnostics on the go.

## Description

Specification: Shell material: aluminum pen typeFiber optic adapter: universal connector Operating temperature: 0-60 degrees Celsius Storage stability: -20-70 degrees Celsius Size: 175 * 26 * 26mm Product weight: 165g Working mode: Both continuous wave and pulse are available Applicable interface: ST / SC / FC / LC (FC male to LC Female connector included) Power: 2 AA batteries (no included)What's in the box: VFL Pen * 2 FC Male to LC Female Adapter *2 Carrying Bag * 2 Lanyard * 2 User Guide * 2 Features & Attribute: 1.Long output distance This visual fault locator has a red light output and can travel in fiber. The efficient power supply circuit can provide stable power. 2.Metal matte paint design The stainless steel head and aluminum-alloy body design are used to prevent collision and dust, and the chassis grounding design effectively prevents electrostatic discharge damage. 3.Widely Used The 2.5 mm universal connector of the detector is designed for ST, SC, and FC compatibility, and can interfere in different circular and square optical cables. Test single-mode and multi-mode cables. 4.Practical design, excellent function Small size, lightweight, easy to carry, has a variety of functions such as constant output power, low battery power alarm, long battery life, long-distance detection, etc. Tips 1. When not in use, remove the battery to prevent battery leakage, which can cause aluminum parts to oxidize and not conduct electricity. Pen type design, with eye bags, easy to carry, easy to check optical fiber fault with visual fault locator, sturdy and durable, dustproof design, keep optical fiber connector clean.

Review: Great Fiber Tester - Works Perfectly Every Time - This VFL tester kit is an excellent tool for anyone working with fiber optic cables. The red light pen works really well for locating faults and tracing fiber runs. It's bright enough to easily identify breaks, bends, and connection issues. The included FC to LC adapter works perfectly and adds versatility to the kit. Having both pieces together makes this a complete solution for most fiber testing needs. The build quality is solid - it feels well-made and durable enough to handle regular use. It's very easy to operate, even if you're not super experienced with fiber testing equipment. I use this for troubleshooting fiber issues at work and on my home network, and it's been reliable every time. It's saved me a lot of time when tracking down connectivity problems. If you work with fiber optics professionally or just need to troubleshoot your home fiber network, I highly recommend this kit. Great value for the money and does exactly what it's supposed to do!
Review: Poor Connector - LC Adapter Does not fit FTL correctly. It constantly falls off.

## Features

- 1. Easy to Check Fiber Faults - 2PCS visual fault locator can accurately detect and locate fiber breaks, poor connections, bending, or cracking. The detector will emit a light for fiber tracing, breaks or faults in the fiber will refract the light.
- 2. Excellent Function - This VFL device is portable and easy for a field test with multiple functions such as constant output power, lower battery warning, long battery life, and long-distance detection.
- 3. WIDELY USED - 2.5mm Universal Connector - the connector of the detector is compatibly designed for ST, SC, FC interferes both in circle and square shape of different fiber optic cables.
- 4. This visual fault locator with battery output light goes in fiber, high effective power circuits allows for stable power.
- 5. Practical Design - Small size and lightweight, pen-type design with pouch make it portable, easy to check fiber faults with visual fault locator, design with a stainless steel head and aluminum body to prevent crash and dust, the case ground design prevents ESD damage efficiently.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0C23PXVR4 |
| Best Sellers Rank | #41,805 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #77 in Network & Cable Testers |
| Brand | GESD |
| Color | Red |
| Date First Available | April 11, 2023 |
| Item Weight | 5.8 ounces |
| Manufacturer | GESD |
| Measurement Type | Optical Power Meter |
| Package Dimensions | 8.03 x 2.87 x 1.57 inches |
| Power Source | Battery Powered |
| Style | 2PCS VFL Included FC to LC Connector |
| UPC | 768432961220 |
| Upper Temperature Rating | 60 Degrees Celsius |

## Product Details

- **Brand:** GESD
- **Color:** Red
- **Item Weight:** 165 Grams
- **Power Source:** Battery Powered
- **Style:** 2PCS VFL Included FC to LC Connector

## Images

![2PCS Visual Fault Locator, VFL Tester Kit - Includes Single Mode 9/125um FC Male to LC Female Adapter and Red Light Pen for Fiber Optic Cable Network Testing - Image 1](https://m.media-amazon.com/images/I/61tbPzkU3nL.jpg)

## Available Options

This product comes in different **Size, Number Of Items** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great Fiber Tester - Works Perfectly Every Time
*by H***R on December 29, 2025*

This VFL tester kit is an excellent tool for anyone working with fiber optic cables. The red light pen works really well for locating faults and tracing fiber runs. It's bright enough to easily identify breaks, bends, and connection issues. The included FC to LC adapter works perfectly and adds versatility to the kit. Having both pieces together makes this a complete solution for most fiber testing needs. The build quality is solid - it feels well-made and durable enough to handle regular use. It's very easy to operate, even if you're not super experienced with fiber testing equipment. I use this for troubleshooting fiber issues at work and on my home network, and it's been reliable every time. It's saved me a lot of time when tracking down connectivity problems. If you work with fiber optics professionally or just need to troubleshoot your home fiber network, I highly recommend this kit. Great value for the money and does exactly what it's supposed to do!

### ⭐⭐ Poor Connector
*by P***T on August 7, 2025*

LC Adapter Does not fit FTL correctly. It constantly falls off.

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-03-21*