VFL-25 – Visual Fault Locator

This pen style VFL is specially designed for field personnel who need a portable light source tool for fiber tracing, fiber routing, continuity testing, to locate breakpoints (bending or cracking in fiber optic cables), and poor connections. VFL-25 has a Universal end for 2.5mm ferruled connectors, such as FC, SC, ST connectors. The VFL works in an OTDR dead zone and is used for end-to-end visual fiber identification. Operates in either CW (continuous wave) or pulsed mode. Not recommended For use on dark colored or armored cables.


  • Light Source: Class IIIA Laser Diode < 5mw.
  • Wavelength: 650nm.
  • Distance: Up to 5km (3.10 miles)
  • Battery Life: 60 Hours.
  • Connector: 2.5mm universal.
  • Working Temperature: -4F (-20C) to 140F (60C).
  • Storage Temperature: -40F (-40C) to 185F (85C).
  • Power: 2 AAA Batteries.
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