--- product_id: 380515097 title: "Fluke Networks FIBERLERT-125 Fiber Optic Cable Tester and Detector" brand: "fluke networks" price: "¥30627" currency: JPY in_stock: true category: "Fluke Networks" url: https://www.desertcart.jp/products/380515097-fluke-networks-fiberlert-125-fiber-optic-cable-tester-and-detector store_origin: JP region: Japan --- # 850-1625 nm wavelength detection 5-min auto power-off battery saver Non-contact design protects fiber integrity Fluke Networks FIBERLERT-125 Fiber Optic Cable Tester and Detector **Brand:** fluke networks **Price:** ¥30627 **Availability:** ✅ In Stock ## Summary > 🚀 Never miss a live fiber signal again — test smarter, faster, safer! ## Quick Answers - **What is this?** Fluke Networks FIBERLERT-125 Fiber Optic Cable Tester and Detector by fluke networks - **How much does it cost?** ¥30627 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/380515097-fluke-networks-fiberlert-125-fiber-optic-cable-tester-and-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 - • **Damage-Free Testing:** Non-contact detection reduces risk to delicate fiber ends and connectors - • **Trusted Durability & Support:** Backed by Fluke’s 2-year warranty and industry-leading reliability - • **Ultra-Portable & Ready-to-Go:** Pocket-sized with included AAA batteries for immediate use - • **Broad Wavelength Compatibility:** Detects single-mode & multimode fibers from 850 to 1625 nm - • **Instant Fiber Activity Confirmation:** Light and sound indicators eliminate guesswork in seconds ## Overview The Fluke Networks FIBERLERT-125 is a compact, battery-powered fiber optic cable tester and detector that instantly identifies live fiber signals across single-mode and multimode wavelengths (850-1625 nm). Featuring a non-contact sensor to protect delicate fibers, intuitive light and sound indicators, and a 5-minute auto shutoff for battery preservation, it’s engineered for professionals who demand quick, reliable fiber verification on the go. Supported by a two-year warranty, this tool is a must-have for efficient fiber network troubleshooting and maintenance. ## Description No more guessing if the fiber is live. Quickly check fiber activity, polarity, and connectivity. No setup or interpretation required – just place in front of the fiber end face or port and a light and tone indicate an active fiber. This pocket-sized tool tests single-mode, multimode UPC and APC patch cords and ports using a “non-contact” detector. The FIBERLERT-125, detects for the presence of 850 nm to 1625 nm optical light. ## Features - Detects optical power in single-mode and multimode fiber wavelengths (near infrared range 850 to 1625 nm) - No setup or interpretation needed – light and sound indicate presence of optical signal - “Non-contact” detector lessens the risk of damage to fiber optics; suitable for ports and patch cords, SM, MM, UPC and APC connections - LightBeat flashes to indicate operation and battery status; powers off after five minutes to preserve battery (2xAAA, included) - Two-year warranty ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B09KZV7V2J | | Best Sellers Rank | #32,619 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #51 in Network & Cable Testers | | Brand | Fluke Networks | | Brand Name | Fluke Networks | | Color | Black, white, yellow | | Customer Reviews | 4.7 out of 5 stars 184 Reviews | | Included Components | FiberLert, Two alkaline batteries | | Item Dimensions | 6.6 x 0.6 x 1 inches | | Item Weight | 6.26 g | | Item dimensions L x W x H | 6.6 x 0.6 x 1 inches | | Manufacturer | Fluke Corporation | | Measurement Type | Optical Power Meter | | Model | FIBERLERT-125 | | Number of Items | 1 | | Part Number | 5317262 | | Power Source | Battery Powered | | Specification Met | CE, FCC | | Style | Modern, Compact | | Style Name | Modern, Compact | | UPC | 195112035665 | | Unit Count | 1 Count | | Upper Temperature Rating | 50 °C | | Warranty Description | Two year warranty | ## Product Details - **Brand:** Fluke Networks - **Color:** Black, white, yellow - **Item Weight:** 6.26 g - **Power Source:** Battery Powered - **Style:** Modern, Compact ## Images ![Fluke Networks FIBERLERT-125 Fiber Optic Cable Tester and Detector - Image 1](https://m.media-amazon.com/images/I/51xHfF+QSyL.jpg) ![Fluke Networks FIBERLERT-125 Fiber Optic Cable Tester and Detector - Image 2](https://m.media-amazon.com/images/I/41+MFcSs2lL.jpg) ![Fluke Networks FIBERLERT-125 Fiber Optic Cable Tester and Detector - Image 3](https://m.media-amazon.com/images/I/41k-N++fRQL.jpg) ![Fluke Networks FIBERLERT-125 Fiber Optic Cable Tester and Detector - Image 4](https://m.media-amazon.com/images/I/51mXTs5TXDL.jpg) ![Fluke Networks FIBERLERT-125 Fiber Optic Cable Tester and Detector - 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 ## Frequently Bought Together - Fluke Networks FIBERLERT-125 Fiber Optic Cable Tester and Detector - Visual Fault Locator 30KM, VFL Fiber Optic Tester Kit - Include Single Mode 9/125um FC Male to LC Female Adapter, Light Pen for Fiber Network Cable Test - FiberShack - 1.25mm LC Fiber Cleaner Pen. 800+ Single Click Fiber Cleaner. LCUPC Optical Connector Cleaner & Endface Cleaning Pen Comes with Damage Protection Case & Dust Caps --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.jp/products/380515097-fluke-networks-fiberlert-125-fiber-optic-cable-tester-and-detector](https://www.desertcart.jp/products/380515097-fluke-networks-fiberlert-125-fiber-optic-cable-tester-and-detector) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-10-31*