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Visual Fault Locator 30KM - VFL Fiber Optic Tester Kit with Universal 2.5mm Connector, Includes FC to LC Adapter, Compatible Single Mode 9/125um & Multimode, Fiber Light & Laser for CATV Telecom

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Availability: In Stock.
Fulfilled by Amazon

Arrives Tuesday, Jun 16
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Model: 30km


Features

  • High-Efficiency Precision Visual Fault LocatorThe Japan-imported 650nm red laser chip delivers stable, powerful output. This VFL fiber optic tester is ideal for finding the right fiber to splice or quickly locating breaks. Switch between continuous and flashing modes to distinguish signal from ambient light. Precision visibility streamlines troubleshootingsaving you time in the field.
  • Excellent Field PartnerThis visual fault locator is constructed from durable aerospace-grade aluminum alloy for superior impact and wear resistance. Anti-slip textured grip and contoured slide switch provide comfortable, secure handling during extended use, reducing hand fatigue. Constant output powerno flickering. Low battery warningno sudden shutdowns. Powered by two AA batteries (not included). Compact, portable, ready when you are. Battery note: Positive (+) toward laser head. Reverse polarity will prevent operation.
  • Wide CompatibilityIt features a standard 2.5mm universal interface. The included premium FC to LC adapter ensures instant compatibility with SC, FC, ST, and LC connectors. Compatible with both Single Mode (9/125um) and Multimode fiber. Perfect for FTTH installation, CATV engineering, data center maintenance, and network troubleshooting.
  • Long-Distance Stable OutputThe Japan-imported 650nm red laser chip and high-efficiency circuit deliver powerful, consistent output. Clear fault detection across long fiber runsup to 30km. Even on long-haul fiber networks, you get efficient, pinpoint accuracy.
  • Complete Kit & Built to LastThe complete kit includes: visual fault locator VFL unit, FC to LC adapter, two anti-loss lanyards, protective carrying pouch, and user manual. Aerospace-grade aluminum body and stainless steel tip resist drops, dust, and static. Self-replaceable ceramic core extends product life. Protective dust cap keeps the connector clean when not in use.
  • Complete Kit & Built to LastThe complete kit includes: visual fault locator VFL unit, FC to LC adapter, two anti-loss lanyards, protective carrying pouch, and user manual. Aerospace-grade aluminum body and stainless steel tip resist drops, dust, and static. Self-replaceable ceramic core extends product life. Protective dust cap keeps the connector clean when not in use.

Brand: Trileria


Power Source: Battery Powered


Style: Pen-style Visual Fault Locator


Color: Black


Item Weight: 0.22 Pounds


Power Source: Battery Powered


Minimum Operating Voltage: 3 Volts


Upper Temperature Rating: 60 Degrees Celsius


Measurement Type: Optical Power


Maximum Operating Voltage: 3 Volts


Style Name: Pen-style Visual Fault Locator


Color: Black


Item Weight: 0.22 Pounds


Item Dimensions: 6.89 x 1.02 x 1.02 inches


Brand Name: Trileria


Model: 30km


Warranty Description: 2 year warranty


Manufacturer: Trileria


Part Number: GQB30MW01


Included Components: Visual Fault Locator ,Adapter,Carrying Pouch , Lanyard ,User Manual


Unit Count: 1.0 Count


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, Jun 16

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


  • Excellent tool for network engineers
Model: 50km
This tool should be owned by anyone who ever has to work with fiber and their panels. I can't believe I'd ever accurately found the other ends of fiber without this. It makes the job so much faster when trying to identify fiber paths at opposite ends of the data center. It also feels sturdy and like it will last. I really hope that it lasts a long time. If it does, this is perfect. ... show more
Reviewed in the United States on May 5, 2026 by David M.

  • Great quality construction!
Model: 50km
Don’t get it this bright unless you need it. It is definitely 50mW! Great quality construction.
Reviewed in the United States on May 19, 2026 by Loren

  • Great light
Model: 50km
This fault Locator is a great thing to use when finding faults in a fiber plant.
Reviewed in the United States on May 19, 2026 by Jamie L.

  • Quick
Model: 50km
Very strong
Reviewed in the United States on May 18, 2026 by Derick Aketung Nkemake

  • Great!
Model: 50km
Does what it's supposed to!
Reviewed in the United States on May 7, 2026 by Barry B.

  • Muy buen producto
Model: 50km
Funciona muy bien me sirve mucho en el trabajo
Reviewed in the United States on April 30, 2026 by Osvaldo León López

  • Excellent quality, price, and strong laser
Model: 50km
This VFL works great and is low cost. With the increase in fiber deployment, inexpensive tools are invaluable. It's rewarding to find one that is both inexpensive and works very well. The only thing that would have been better is either including bulkhead adapters or a link to a kit of bulkhead adapters. The fit and finish of this VFL is excellent, and the laser is very bright and works extremely well. ... show more
Reviewed in the United States on March 16, 2026 by NV_Mike

  • Battery longevity
Model: 50km
The light is strong but the battery doesn’t last longer than two hours,
Reviewed in the United States on April 1, 2026 by Lionel Hampton

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