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The VIAVI FI-60 LFI enables users to easily detect the optical signal without disconnecting fiber or disrupting network traffic. The FI-60 LFI also includes the unique VIAVI SafeChekTM system, which ensures safe and repeatable engagement with most fiber types without the hassle of changing out costly dies. The FI-60 also converts to an Optical Power Meter (OPM), providing twice the value for your investment and reducing the number of tools carried on the job.


  • Avoid network downtime and damage with repeatable SafeChekTM easy-pull trigger system.

  • Get the job done faster with a single LFI head that is compatible with multiple cable diameters (250μm to 3mm jacketed fibers).

  • Increase reliability and avoid false readings with integrated ambient light shield.

  • Have twice the tool at half the price! The FI-60 LFI easily converts to a full-function OPM that stores, recalls, and exports results to a PC via USB.

  • Easily detect the optical signal without having to disconnect the fiber.

  • Installation, service, maintenance, or troubleshooting

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