Fluke NetworksFIBERLERT-125 - Single Pack

Fluke NetworksFIBERLERT-125 - Single Pack

Q: How does it see polarity?

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?

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

4.7/5

Product ID: 556201911

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Details

Brand
Fluke Networks
Power source
Battery
Style
Compact
Colour
Yellow
Item weight
0.22 Ounces

🌈850-1625 nm wavelength range

🎯Instant optical signal detection

🔋Auto power-off after 5 min

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

Description

🚦 Spot the signal, skip the guesswork—fiber testing made foolproof!

BATTERY SMART - Includes 2 AAA batteries with auto shutoff to maximize uptime and reliability.
COMPACT LIGHTWEIGHT - Sleek yellow design weighing just 6.23g fits perfectly in any toolkit.
PLUG PLAY PRECISION - No setup needed—light and sound confirm fiber signals instantly.
VERSATILE COMPATIBILITY - Works seamlessly with single-mode, multimode, UPC, and APC fiber connections.
VISUAL AUDIBLE ALERTS - LightBeat flashes and sound cues keep you confidently informed on the go.

The Fluke Networks FIBERLERT-125 is a compact, battery-powered fiber optic tester that detects optical power across 850 to 1625 nm wavelengths. Designed for both single-mode and multimode fibers, it provides instant visual and audible feedback without any setup. Its lightweight, durable design and smart auto power-off feature make it an essential tool for professionals ensuring flawless fiber connectivity.

Specifications

Manufacturer	Fluke Networks
Part number	5317262
Item Weight	6.23 g
Product Dimensions	16.76 x 1.52 x 2.54 cm; 6.24 g
Batteries	2 AAA batteries required. (included)
Item model number	FIBERLERT-125
Color	Yellow
Style	Compact
Material	Plastic
Power source type	Battery Powered
Item Package Quantity	1
Specification met	CE
Included components	Fluke FIBERLERT
Batteries Included?	Yes
Batteries Required?	Yes
Battery life	5 minutes

Have a Question? See What Others Asked

How does it see polarity?

can't i just use my phone's camera to check for light coming from transceiver? how is this better?

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The delivery time was excellent, and the packaging was secure.

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TrustScore 4.5 | 7,300+ reviews

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Customer service was outstanding when I had questions about the product.

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Fast shipping and excellent packaging. The Leatherman tool feels very premium and sturdy.

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