The OFI-3 Optical Fiber Identifier is a low cost, portable instrument designed to detect optical signals without disrupting traffic. Based on non-destructive macro-bending technology, the OFI-3 Optical Fiber Identifier doesn't disrupt traffic running over fibers, or damage or over-stress the fiber enabling efficient, accurate and reliable data acquisition.


During maintenance, installations, re-routing or restorations, it's often necessary to isolate a specific fiber. By simply clamping an OFI-3 Optical Fiber Identifier onto a fiber, it will indicate if there is a signal, a modulated signal, or traffic, as well as indicating signal direction.


Able to detect signals with wavelengths in the range 900nm to 1650nm, the batter powered OFI-3 is a cost effective solution for Fiber identification.




  • Small, portable and durable design.
  • 'One button meter', convenient and easy to use.
  • Detects a variety of optical tones,270Hz,1kHz and 2kHz.
  • Powered by 2 1.5V AA alkaline batteries
  • RB0.25mm, RB0.9mm, and RB3.0mm plungers available

OFI-3 Optical Fiber Identifier

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