---
product_id: 341659416
title: "Komshine KFI-40 Optical Fiber Traffic Identifier Fiber Detector with V-F-L Function 800-1700nm + LED Display"
brand: "komshine"
price: "1052 kr"
currency: DKK
in_stock: true
reviews_count: 4
category: "Komshine"
url: https://www.desertcart.dk/products/341659416-komshine-kfi-40-optical-fiber-traffic-identifier-fiber-detector-v
store_origin: DK
region: Denmark
---

# Testing distance up to 5KM with V-F-L Testing sensitivity -40dBm to 10dBm Built-in LED light for dark environments Komshine KFI-40 Optical Fiber Traffic Identifier Fiber Detector with V-F-L Function 800-1700nm + LED Display

**Brand:** komshine
**Price:** 1052 kr
**Availability:** ✅ In Stock

## Summary

> 🚀 Light up your fiber game with Komshine’s precision power!

## Quick Answers

- **What is this?** Komshine KFI-40 Optical Fiber Traffic Identifier Fiber Detector with V-F-L Function 800-1700nm + LED Display by komshine
- **How much does it cost?** 1052 kr with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.dk](https://www.desertcart.dk/products/341659416-komshine-kfi-40-optical-fiber-traffic-identifier-fiber-detector-v)

## Best For

- komshine enthusiasts

## Why This Product

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

## Key Features

- • **Rugged, Reliable, Ready:** Stable penetrating power and ergonomic grip make this the go-to device for fiber pros who demand accuracy and durability.
- • **Universal Compatibility:** Back clip design fits all common fiber sizes (0.25/0.9/2.0/3.0mm) for seamless integration into your toolkit.
- • **Illuminate Your Workflow:** Integrated LED lighting lets you work confidently in low-light or cramped spaces without missing a beat.
- • **Extended Reach for Complex Networks:** V-F-L function with 2.5mm connectors supports fiber testing up to 5 kilometers—perfect for large-scale projects.
- • **Precision Detection at Your Fingertips:** Ultra-sensitive range from -40dBm to 10dBm ensures pinpoint fiber identification every time.

## Overview

The Komshine KFI-40 is a high-accuracy optical fiber traffic identifier featuring a wide sensitivity range (-40dBm to 10dBm), built-in LED lighting for dark environments, and a V-F-L function enabling fiber testing up to 5 kilometers. Its universal back clip fits multiple fiber sizes, making it an essential, reliable tool for professional fiber maintenance and troubleshooting.

## Description

Komshine KFI-40 Optical Fiber Traffic Identifier Fiber Detector with V-F-L Function 800-1700nm + LED Display: desertcart.com: Industrial & Scientific

Review: Decent Identifier - Fiber identifier and direction indicator checked out fine, tested in both directions. VFL and LED worked also. Easy to grip and operate the trigger for testing. No complaints so far.
Review: Not all options worked. - I only needed it to identify active fibers. But I thought the flash light and the red identifier light were added bonuses. However those last two options did not work. I will use it for my original need but I am unhappy with the overall product.

## Features

- ---Testing sensitivity -40dBm to 10 dBm; Be equipped with LED light,more convenient to work in the dark
- ---Strong and stable penetrating power
- ---Universal back clip design,suitable for 0.25/0.9/2.0/3.0 fiber
- ---Built-in V-F-L,2.5mm universal connectors，strong stability，testing distance is up to 5KM
- ---Upgraded high accuracy fiber identifier KFI-40 integrates V-F-L and LED lighting function,It is one of the necessary tools for fiber maintenance.Fiber identifier can detect any position of the single mode and multi mode fiber.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B095HKLJZ4 |
| Best Sellers Rank | #727,000 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #1,301 in Network & Cable Testers |
| Date First Available | May 20, 2021 |
| Item Weight | 9.5 ounces |
| Item model number | 7353333955428 |
| Manufacturer | KOMSHINE |
| Package Dimensions | 9.61 x 3.66 x 2.4 inches |

## Product Details

- **Brand:** KOMSHINE
- **Manufacturer:** KOMSHINE
- **Measurement Type:** dBm
- **Power Source:** Battery Powered
- **Specification Met:** CE, NIST

## Images

![Komshine KFI-40 Optical Fiber Traffic Identifier Fiber Detector with V-F-L Function 800-1700nm + LED Display - Image 1](https://m.media-amazon.com/images/I/61S-CdbsECL.jpg)
![Komshine KFI-40 Optical Fiber Traffic Identifier Fiber Detector with V-F-L Function 800-1700nm + LED Display - Image 2](https://m.media-amazon.com/images/I/61tyS6TGuIS.jpg)
![Komshine KFI-40 Optical Fiber Traffic Identifier Fiber Detector with V-F-L Function 800-1700nm + LED Display - Image 3](https://m.media-amazon.com/images/I/61YhCSm30cL.jpg)
![Komshine KFI-40 Optical Fiber Traffic Identifier Fiber Detector with V-F-L Function 800-1700nm + LED Display - Image 4](https://m.media-amazon.com/images/I/61y7mjA+WCL.jpg)
![Komshine KFI-40 Optical Fiber Traffic Identifier Fiber Detector with V-F-L Function 800-1700nm + LED Display - Image 5](https://m.media-amazon.com/images/I/61c9ayPPANL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Decent Identifier
*by B***N on November 3, 2023*

Fiber identifier and direction indicator checked out fine, tested in both directions. VFL and LED worked also. Easy to grip and operate the trigger for testing. No complaints so far.

### ⭐ Not all options worked.
*by D***D on July 19, 2023*

I only needed it to identify active fibers. But I thought the flash light and the red identifier light were added bonuses. However those last two options did not work. I will use it for my original need but I am unhappy with the overall product.

### ⭐⭐⭐ Works but missing VFL
*by D***E on August 2, 2021*

This model works, it just did not have the VFL as in the description.

## Frequently Bought Together

- Komshine KFI-40 Optical Fiber Traffic Identifier Fiber Detector with VFL Function 800-1700nm + LED Display
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**Shop now:** [https://www.desertcart.dk/products/341659416-komshine-kfi-40-optical-fiber-traffic-identifier-fiber-detector-v](https://www.desertcart.dk/products/341659416-komshine-kfi-40-optical-fiber-traffic-identifier-fiber-detector-v)

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*Product available on Desertcart Denmark*
*Store origin: DK*
*Last updated: 2026-02-25*