# FLUKE Live Fiber Detector FIBERLERT-125 — visual and audible alerts for live optical fiber detection

**URL:** https://aio.lv/en/product--fluke-fiberlert-125--10709461
**Data updated:** 2026-02-12 22:04 (EET)
**Category:** Cable testers
**Manufacturer:** FLUKE
**Manufacturer code:** FIBERLERT-125
**EAN:** 195112035665
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 202.99 €
**Prices and availability valid until:** 2026-07-20 23:59
**Price without VAT (21%):** 167.76 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--fluke-fiberlert-125--10709461

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 09.07.2026 | free |
| Pickup points | 14.07.2026 | 1.89 EUR |
| Courier delivery to door | 14.07.2026 | 4.99 EUR |

## Summary description

The FLUKE FIBERLERT-125 is a live fiber detector that provides visual and audible alerts to identify active optical fibers without service interruption. Designed for quick on-site troubleshooting and verification, it detects live signals on fiber links and alerts the technician with clear indicators. Useful for testing, maintenance and avoiding accidental connection damage during fiber work.

## Long description

The FLUKE Live Fiber Detector FIBERLERT-125 provides a compact, non-intrusive method to detect active optical signals on fiber links and warn technicians with clear visual and audible alerts. Designed for field use, the device identifies live fibers without interrupting service, allowing safe verification and rapid troubleshooting in data centers, telecom closets, and outside plant environments. The detector supports both single-mode and multimode fiber inspection and is intended to be used inline or adjacent to connector endfaces to indicate the presence of an optical transmission.
Advantages
The FIBERLERT-125 delivers immediate visual LED indication and an audible tone when it senses an active optical signal, enabling fast identification of live fibers during maintenance and installation. Its handheld form factor and passive operation remove the need to power down systems or disconnect links, reducing downtime and the risk of service disruption. The unit’s sensitivity allows detection across common data and telecom wavelengths, helping to prevent accidental splicing or connection of live circuits.
Suitable for
 Field technicians performing fibre network troubleshooting and verification
 Data center maintenance and port identification tasks
 Installation checks to avoid connecting to live optical links
 Outside plant and premises cabling inspections
Key specifications
 Detection method: visual LED indicator and audible alarm for live optical signals
 Supported fiber types: single-mode and multimode
 Wavelength sensitivity: covers common telecom and data wavelengths used in active links
 Form factor: handheld, portable design for on-site use
 Operation: non-intrusive detection without disconnecting service
How to use
Place the FIBERLERT-125 near the connector endface or along the fiber connector interface area where you suspect an active signal. Observe the LED indicators and listen for an audible tone; a steady or pulsed LED and audible alert indicate a live optical signal. The device requires no special setup—simply position it appropriately and interpret the visual and audible cues. Follow normal safety practices for working around active fiber systems and avoid looking directly into fiber ends.
Usage recommendations
Use the detector as a first step in verification before performing splicing, connector changes, or any work that could contact fiber links. Combine FIBERLERT-125 detection with additional tests (e.g., power meters or OTDR measurements) when precise signal level or distance information is required. Store the unit in a protective case when not in use and inspect connectors and adapter interfaces for contamination before testing to ensure reliable detection.

## FAQ

### How much does the FLUKE FIBERLERT-125 Live Fiber Detector cost, and is it available for purchase?

The price is 202.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 2 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 09.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Cash payment, Bank transfer, Bank cards on-line, Apple Pay, Google Pay. All transactions are 100% secure and encrypted.

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All FLUKE products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized FLUKE service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

## Image

https://aio.lv/img/cache/product/10709461/59770829_large.webp