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Pre-Term Fiber Assemblies
MTP Trunk Assemblies
MTP Fanout Cables
MTP Cassettes
Fiber Optic Enclosures
Fiber Optic Patch Cables
Ethernet Patch Cables
Ethernet Cable Bundles
Unterminated Fiber By The Foot
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Use LANShack’s state of the art network designer tool to completely build your network from scratch.
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Pre-Term Fiber Assemblies
MTP Trunk Assemblies
MTP Fanout Cables
MTP Cassettes
Fiber Optic Enclosures
Fiber Optic Patch Cables
Ethernet Patch Cables
Ethernet Cable Bundles
Unterminated Fiber By The Foot
The 4-in-1 Optical Fiber Tester is an all-in-one troubleshooting and installation tool designed for fiber optic and network professionals. Combining an Optical Power Meter (OPM), Visual Fault Locator (VFL), RJ45 continuity tester, and RJ45 crimp quality tester, this compact handheld device eliminates the need to carry multiple test instruments into the field.
Whether you're installing fiber optic cabling, verifying optical power levels, identifying fiber breaks, or testing Ethernet cable terminations, the 4-in-1 tester delivers fast, accurate results from a single portable device.
The built-in optical power meter supports the industry's most common wavelengths—including 850, 980, 1310, 1490, 1550, and 1625nm—and measures optical power from -60 to +8 dBm. Automatic wavelength memory, reference value functionality, and frequency detection simplify testing while improving measurement consistency.
For fiber troubleshooting, the integrated Visual Fault Locator features steady, slow flash, and fast flash modes, making it easy to locate fiber breaks, excessive bends, damaged connectors, or poor splices.
Network installers will appreciate the included RJ45 continuity tester, which quickly identifies opens, shorts, crossed pairs, and wiring faults using the detachable remote unit. The integrated RJ45 crimp quality test also helps verify proper connector termination before a cable is placed into service, reducing costly callbacks.
Designed for everyday field use, the tester features a bright HD display, rugged silicone impact protection, integrated LED flashlight, USB Type-C rechargeable lithium battery, automatic power-off, and compatibility with FC, SC, and ST fiber connectors.
Features
- Combines four essential testing functions into one compact handheld unit
- Optical Power Meter measures -60 to +8 dBm
- Supports 850, 980, 1310, 1490, 1550, and 1625nm wavelengths
- Displays measurements in dBm, mW, μW, and nW
- Built-in Visual Fault Locator with steady, slow flash, and fast flash modes
- RJ45 continuity tester detects opens, shorts, crossed pairs, and wiring faults
- Integrated RJ45 crimp quality verification function
- Automatically detects optical signal frequency (270Hz, 1kHz, and 2kHz)
- Reference (REF) measurement function for simplified loss testing
- Automatic wavelength memory recalls previous settings
- Bright HD digital display for easy viewing
- Rugged silicone protective housing for improved durability
- Built-in LED flashlight for low-light environments
- USB Type-C rechargeable lithium battery
- Automatic power-off function helps extend battery life
- Compatible with FC, SC, and ST fiber optic interfaces
- Compact, lightweight design for technicians and field installers
Typical Applications
- Fiber optic installation and maintenance
- Optical power verification
- Fiber troubleshooting and fault location
- Testing patch panels and fiber links
- Verifying optical transceivers and receivers
- RJ45 cable continuity testing
- Ethernet cable termination verification
- Datacom, telecommunications, security, industrial networking, and premise cabling installations
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Don’t Just Take Our Word For It
Jan 29, 2026
I love the downloadable quote
I love the downloadable quote. We order through a purchasing department and this make it so much easier to order exactly what we want.
Anna Plotini
Mar 04, 2026
QUICK & EASY
QUICK & EASY
Catty Shack Ranch
Mar 27, 2026
Easy to find and order exactly what you…
Easy to find and order exactly what you need. Fast shipping on custom orders
Chrissy @ Davis
Jun 05, 2026
Shipper needs to be replaced!!!
I have bought from Landshack in the past, great company, always has what I need.
Thank You
Donk Cabling Inc
Apr 15, 2026
Great Customer Service and received the…
Great Customer Service and received the product faster than expected.
customer
Feb 27, 2026
LANshack is the BEST!
Online ordering process was quick and easy. We are a non-profit organization and the LANshack team made the tax exemption process quick and easy. Fast shipping is especially appreciated! Thanks so much!
Non-Profit Customer
Apr 07, 2026
Great purchase
Fair price, quick delivery. All one can ask for
Gary Conley
Apr 14, 2026
Great Custom Cables
Great product, exactly what I needed and fairly quick shipping considering they are custom cables! Will definitely be ordering more.
Matt S
Apr 08, 2026
everything worked as expected
everything worked as expected. Nice pull sock set up.
customer
Jul 18, 2026
Easy ordering process
Easy ordering process. Fast delivery! Will definitely use them again.
Roger Borlinghaus
Apr 25, 2026
Fast and very efficient ordering and…
Fast and very efficient ordering and delivery!!
Thank You!!
Lynn
Jun 24, 2026
We have purchased from LANshack in the…
We have purchased from LANshack in the past and never had a problem.
JW Communications
Jun 30, 2026
We got the order delivered on time and…
We got the order delivered on time and worked perfectly. Have used them multiple times and the quality is great and was a good value.
Code Red Audits LLC
Feb 20, 2026
Products are high quality and order processing and ship times on custom cabling orders are great!
Quality and ship time
customer
Apr 24, 2026
No problems were encountered
No problems were encountered. Every item, whether at purchase, delivery, installation and operation, went flawlessly.
Joseph D'Orazio
Jun 17, 2026
Great products and great service period
Great products and great service that are always delivered as they are pictured and with great care and quality.
Paul L
Feb 05, 2026
The ordering process is smooth
The ordering process is smooth. The shipment notice seems to happen within hours of entering the order. It's delivered in only a few days.
customer
Jun 01, 2026
Fast shipping
Fast shipping, correct product shipped, very responsive to customer inquiries. Will buy from again.
Chris - Western NY
Feb 17, 2026
LANshack: Best custom CAT8 ethernet cable on the market!
I needed a custom 55 foot S/FTP (Shielded Foiled Twisted Pair) CAT8 indoor ethernet cable for ethernet backhaul between two Eero mesh routers. I did tons of research (including Grok) and I came across LANshack.com. They have the thickest 23AWG wire in their custom CAT8 cable vs 26AWG on Amazon (lower number is thicker; 23AWG wire has roughly twice the cross-sectional area of 26AWG). Excellent price per foot, and this cable is thick! Very quick turnaround once you order from them. I am very pleased with LANshack and I will order from them again for future projects!
Daniel T.
Apr 02, 2026
Easily ordered exactly what I needed
Easily ordered exactly what I needed. Once I got a shipping label item was delivered quickly and was packaged nicely. Would order from here again.
customer
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