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EXFO Inc.™

High-power visual fault locator

The FLS-190 is the easiest way to identify fibers from end to end, and to locate polished connector endfaces. Its red laser shines through most jacketed fibers to help you pinpoint breaks, bends, faulty connectors, splices and other causes of signal loss. With its 5mW output, it has a reach of up to 12 km (typically, depending on fiber attenuation and on ambient light conditions).

The FLS‑190 pinpoints faults visually by creating a bright red glow at the exact location of the fault on singlemode or multimode fibers. It can also be used to identify the port of a fiber in a patch panel.

Compact design
With a streamlined, pocket-sized pen-style design, the FLS‑190 can easily be carried anywhere. This VFL comes with an anodized aluminium casing. This long-lasting and lightweight device is designed to be part of the essential toolkit for any fiber‑testing field technician.

Long lasting
The FLS-190 high efficiency guarantees prolonged operation with two standard AA alkaline batteries, typically providing 30 hours of uninterrupted operation. It is also compatible with rechargeable batteries, reducing the need for single-use ones.

The FLS-190 offers an affordable solution for locating fibers and faults, making it a valuable—if not essential—tool for each and every fiber technician.

Key features
  • Output power: 5 mW
  • Range: 12 km
  • Bright red laser at 650 nm (safety class 3R)
  • Flashing and continuous operation modes
  • 30 hours of operation (typical)
  • Standard AA alkaline batteries
  • Pocket-sized pen-style design
  • 2.5 mm universal connector
  • 1.25 mm adapter available

Learn more at EXFO.com

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  • Lab equipment

    EXFO develops smarter tests, monitoring and analytics solutions for the global communications industry. They are trusted advisers to fixed and mobile network operators, hyperscalers and leaders in the manufacturing, development and research sector. Building on 35 years of innovation, EXFO’s unique blend of equipment, software and services provide faster, more confident transformations related to 5G, cloud-native and fiber optic networks.

  • Trust

    When we say "our solutions match or exceed industry leading tier 1 manufacturers, rigorously engineered and tested", we need our tests equipment to be the same. Precision and reliability are not a feature but a necessity. EXFO Facts: +95% of the top CSPs worldwide use EXFO solutions, 5000+ quality audits of service and performance and No.1 worldwide in fiber optic test solutions

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