---
product_id: 636336509
title: "1pc 50mw 50km Visual Fault Locator VFL Fiber Optic Tester Fiber Optic Cable Tester with 1pcs Singlemode 9/125um FC Male to LC Female Adapter"
brand: "fyboptwu"
price: "€ 110.50"
currency: EUR
in_stock: true
reviews_count: 5
category: "Fyboptwu"
url: https://www.desertcart.gr/products/636336509-1pc-50mw-50km-visual-fault-locator-vfl-fiber-optic-tester
store_origin: GR
region: Greece
---

# 50km long-distance fault detection 50mW ultra-bright output power Universal 2.5mm multi-interface adapter 1pc 50mw 50km Visual Fault Locator VFL Fiber Optic Tester Fiber Optic Cable Tester with 1pcs Singlemode 9/125um FC Male to LC Female Adapter

**Brand:** fyboptwu
**Price:** € 110.50
**Availability:** ✅ In Stock

## Summary

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

## Quick Answers

- **What is this?** 1pc 50mw 50km Visual Fault Locator VFL Fiber Optic Tester Fiber Optic Cable Tester with 1pcs Singlemode 9/125um FC Male to LC Female Adapter by fyboptwu
- **How much does it cost?** € 110.50 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/636336509-1pc-50mw-50km-visual-fault-locator-vfl-fiber-optic-tester)

## Best For

- fyboptwu enthusiasts

## Why This Product

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

## Key Features

- • **Smart Power Management:** Constant output power with low battery warning for uninterrupted testing.
- • **Rugged, Field-Ready Design:** Dust-proof cover and anti-slip aluminum body ensure reliable use on the go.
- • **Pinpoint Fiber Faults Up to 50km:** Detect breaks, bends, and connectivity issues with ultra-long range precision.
- • **Optimize Fiber Networks Like a Pro:** Identify OTDR blind zone faults and perform end-to-end fiber identification effortlessly.
- • **Versatile Multi-Interface Compatibility:** Seamlessly test ST, SC, FC, and LC fiber connectors with one device.

## Overview

The fyboptwu 50mW Visual Fault Locator is a high-performance fiber optic tester designed for professional field use. It delivers ultra-bright output power capable of detecting faults up to 50 kilometers away, supports multiple fiber connector types via a universal 2.5mm adapter, and features a durable, dust-proof aluminum body with anti-slip grip. Ideal for telecom, CATV, and optical network maintenance, it offers advanced functions like OTDR blind zone fault detection and end-to-end fiber identification, ensuring precise and efficient fiber optic troubleshooting.

## Description

Visual fault locator is used for the measurement in single-mode or multi-mode fibers.

Review: Love that these have a slider to cover the on off switch.
Review: out of the box they seem great. bright. we shall see how they perform over time and use. good price point for the quality recieved. would certainly purchase again.

## Features

- 【Ultra Long Distance Test】The 50mw Fiber Optic Visual Fault Locator (the fiber optical fault detector) has a strong source output power, which can detect fiber patch cord faults within 50 kilometers.
- 【Functions】 The Fiber Optic Visual Fault Locator can detect fiber connectivity and locate fiber faults, such as fiber breaks or bends. In addition, it also has functions such as fault detection in the OTDR blind zone, end-to-end fiber identification, and mechanical continuous point optimization. (Package does not include battery)
- 【Advantage】The fiber optic tester is perfect for field tests because of its multiple functions such as constant output power, multi-interface adaptation, low battery warning, long battery life, and long-distance detection.
- 【Application】2.5mm Universal Connector - the connector of the detector is compatibly designed for ST, SC, FC, LC interferes both in circle and square shape of different fiber optic cables. It can be used in telecommunication/CATV engineering and maintenance, integrated wiring construction and maintenance, optical device production and research and other optical fiber engineering.
- 【Dust-proof and Non-slip Design】The dust cover design keeps the Locator clean to protect the accuracy of the test; the aluminium body purchases a metal mesh design to increase friction and prevent it from falling out of yourhand during use.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0BJVNTDFJ |
| Item model number | YW-HGB1-50MW+FC-Weus |
| Manufacturer | Yannw-shop |
| Package Dimensions | 19.1 x 7.19 x 3.4 cm; 91 g |

## Product Details

- **Brand:** fyboptwu
- **Colour:** Yellow Switch
- **Manufacturer:** Yannw-shop
- **Power source:** Battery Powered
- **Style:** 50mw

## Images

![1pc 50mw 50km Visual Fault Locator VFL Fiber Optic Tester Fiber Optic Cable Tester with 1pcs Singlemode 9/125um FC Male to LC Female Adapter - Image 1](https://m.media-amazon.com/images/I/71IIKrzzWfL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by J***E on 7 January 2026*

Love that these have a slider to cover the on off switch.

### ⭐⭐⭐⭐⭐ Review
*by M***M on 27 May 2025*

out of the box they seem great. bright. we shall see how they perform over time and use. good price point for the quality recieved. would certainly purchase again.

### ⭐ Review
*by D***N on 24 March 2024*

Strong tracer light when it works. Ive only had four months and light started only working intermittently. I can shake or tap sometimes to get working temporarily.

## Frequently Bought Together

- FYBOPTWU - 1pc 50km Visual Fault Locator VFL Fiber Tester Visual Fault Locator Fiber Optic Cable Tester with 1pcs Singlemode 9/125um FC Male to LC Female Adapter, Yellow Switch
- Jonard Tools JIC-375 Three Hole Fiber Optic Stripper with TPR Handle, 6" Length, Оne Расk
- D YEDEMC Fiber Optic Cable Tester Portable Optical Fiber Power Meter FC/SC/ST Universal Interface Fiber Tester Built-in 2Mw Visual Fault Locator (OPM-VFL-1)

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*Product available on Desertcart Greece*
*Store origin: GR*
*Last updated: 2026-03-03*