Item Number: FLS-140
Packaging Unit: 1 / each
  • Highly efficient pocket-size visual fault locator—the ideal complementary tool for any fibre-testing technician
  • Pocket-size pen-style design
  • 2.5 mm universal connector
  • Standard AAA alkaline batteries
  • 40 hours of operation (typical)
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Product Information

The FLS-140 is the easiest way to identify optical fibres from end to end and locate polished connector endfaces. Its red laser shines through most yellow-jacketed optical fibres to help you pinpoint breaks, bends, faulty connectors, splices and other causes of signal loss. It has a reach of up to 5 km. The convenient FLS-140 locates faults visually by creating a bright red glow at the exact location of the fault on singlemode or multimode optical fibres.

With a pocket-size pen-style design, this visual fault locator can easily be carried anywhere. Thanks to its anodized aluminium casing, this long-lasting and lightweight tool is the complementary tool of choice for any fibre-testing field technician.

The FLS-140’s extremely high efficiency guarantees prolonged operation with two standard AAA alkaline batteries, typically providing 40 hours of uninterrupted operation.

Priced to accommodate the tightest budgets, the FLS-140 is a truly affordable way to locate faults in OTDR dead zones. Its effectiveness justifies purchasing one for just about every fibre technician.


  • Detects breaks in OTDR dead zone.
  • Highlights sharp bends where losses occur.
  • Optimizes mechanical/fusion splices.
  • Detects defective connectors.
  • Ensures end-to-end fibre identification in multifibre cables.
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