---
product_id: 731873676
title: "Genuine Fluke Networks FIBERLERT-125 Fiber Optic Cable Tester and Detector Current Optical Identifier"
brand: "fluke networks"
price: "239 kr"
currency: DKK
in_stock: false
reviews_count: 5
url: https://www.desertcart.dk/products/731873676-genuine-fluke-networks-fiberlert-125-fiber-optic-cable-tester-detector
store_origin: DK
region: Denmark
---

# 850-1625 nm wavelength range Silent light & sound alerts Auto power-off extends battery life Genuine Fluke Networks FIBERLERT-125 Fiber Optic Cable Tester and Detector Current Optical Identifier

**Brand:** fluke networks
**Price:** 239 kr
**Availability:** ❌ Out of Stock

## Summary

> 🔍 Stay ahead in fiber testing—detect with precision, protect with confidence!

## Quick Answers

- **What is this?** Genuine Fluke Networks FIBERLERT-125 Fiber Optic Cable Tester and Detector Current Optical Identifier by fluke networks
- **How much does it cost?** 239 kr with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.dk](https://www.desertcart.dk/products/731873676-genuine-fluke-networks-fiberlert-125-fiber-optic-cable-tester-detector)

## Best For

- fluke networks enthusiasts

## Why This Product

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

## Key Features

- • **Non-Contact Safety:** Protects delicate fiber ends by detecting signals without physical contact, reducing contamination risk.
- • **LED Status Feedback:** LightBeat LED indicators keep you informed of operation and battery status at a glance.
- • **Effortless Detection:** No settings or guesswork—instantly identifies active fiber signals with light and sound alerts.
- • **Smart Power Management:** Auto shut-off after 5 minutes of inactivity maximizes battery life for uninterrupted workflow.
- • **Universal Compatibility:** Supports single-mode, multi-mode, UPC, and APC fiber connections for versatile field use.

## Overview

The Fluke Networks FIBERLERT-125 is a cutting-edge fiber optic cable tester and detector designed for professionals who demand accuracy and ease. Covering a broad near-infrared wavelength range (850-1625 nm), it instantly identifies live fiber signals across single-mode and multi-mode cables without any setup. Its non-contact detection minimizes contamination risks, while smart LED indicators and auto power-off features ensure efficient, reliable operation in any testing environment.

## Description

Fluke Networks FIBERLERT-125 Fiber Optic Cable Tester and Detector - Current Optical Identifier

Review: Easy to use
Review: Fiberlert

## Features

- Single-mode and multi-mode fiber optic wavelengths (near infrared range 850 nm to 1625 nm) detect current light
- No setting or interpretation of test results is required to alert light and sound to the presence of light signals
- The "non-contact" detector reduces the risk of dirt and damage to the object being measured
- Port and patch cord, support SM, MM, UPC and APC connections
- LightBeat flashes LEDs to indicate operation and battery status. It will also turn off if not used for 5 minutes and extend battery life

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B09KZV7V2J |
| Amazon Bestseller | #193,459 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #2,488 in Voltage Testers |
| Brand | Fluke Networks |
| Brand Name | Fluke Networks |
| Customer Reviews | 4.7 out of 5 stars 164 Your Review |
| Included Components | FiberLert Alkaline Batteries x 2 |
| Item Dimensions | 16.8 x 1.5 x 2.5 cm |
| Item Height | 1 inches |
| Item Weight | 0.22 Ounces |
| Item dimensions L x W x H | 16.8 x 1.5 x 2.5 cm |
| Manufacturer | Fluke Networks |
| Measurement Type | Optical Power Meter |
| Model | FIBERLERT-125 |
| Power Source | Battery Powered |
| Specification Met | CE, FCC |
| Style | Modern |
| Style Name | Modern |
| UPC | 195112035665 |
| Unit Count | 1.00 Count |
| Upper Temperature Rating | 50 Degrees Celsius |

## Product Details

- **Brand:** Fluke Networks
- **Power Source:** Battery Powered
- **Style:** Modern
- **Item Weight:** 0.22 Ounces
- **Item dimensions L x W x H:** 16.8 x 1.5 x 2.5 cm

## Images

![Genuine Fluke Networks FIBERLERT-125 Fiber Optic Cable Tester and Detector Current Optical Identifier - Image 1](https://m.media-amazon.com/images/I/41+MFcSs2lL.jpg)
![Genuine Fluke Networks FIBERLERT-125 Fiber Optic Cable Tester and Detector Current Optical Identifier - Image 2](https://m.media-amazon.com/images/I/41k-N++fRQL.jpg)
![Genuine Fluke Networks FIBERLERT-125 Fiber Optic Cable Tester and Detector Current Optical Identifier - Image 3](https://m.media-amazon.com/images/I/51mXTs5TXDL.jpg)
![Genuine Fluke Networks FIBERLERT-125 Fiber Optic Cable Tester and Detector Current Optical Identifier - Image 4](https://m.media-amazon.com/images/I/51xHfF+QSyL.jpg)
![Genuine Fluke Networks FIBERLERT-125 Fiber Optic Cable Tester and Detector Current Optical Identifier - Image 5](https://m.media-amazon.com/images/I/61DS0COv+wL.jpg)

## Questions & Answers

**Q: How does it see polarity?**
A: In terms of polarity, there is no “+” or “-“ as with electrical current. There is only direction of light flow. The tester itself will indicate if there is light flow in a strand and from which direction.

**Q: can't i just use my phone's camera to check for light coming from transceiver? how is this better?**
A: Camera on a phone works great, most of the time.  However, here is why I tend to use the FiberLert

- I struggle to see dim 850nm light and often fail to detect 1300nm or 1550nm light ... perhaps this tells you more about my aging eyes or the quality of the camera on my phone ... but that's my experience

- In tight spaces, I can maneuver the FiberLert into a place where I cannot fit a camera

- I appreciate the ease and speed of mating the FiberLert with the patch cord or bulkhead connector along with the combination of the blinky light plus the audible beep, announcing the presence of light -- fast feedback, as compared to positioning the camera, angling it appropriately, and then staring intently to detect the light

That being said, camera on the phone works most of the time

## Customer Reviews

### ⭐⭐⭐⭐⭐ Easy to use
*by E***I on December 17, 2023*



### ⭐⭐⭐⭐⭐ Fiberlert
*by I***S on December 23, 2025*



### ⭐⭐⭐⭐ Useful piece of kit!
*by A***R on May 16, 2023*



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- Fluke Networks FIBERLERT-125 Fiber Optic Cable Tester and Detector
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*Product available on Desertcart Denmark*
*Store origin: DK*
*Last updated: 2026-01-30*