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Optical Fiber Identifier


Product Overview

The FI-3A Optical Fiber Identifier is a low cost and handheld device designed to detect optical signals in live fibers. It is used during maintenance, installations, rerouting or restoration when isolating a specific fiber is necessary. By simply clamping the FI-3A onto a fiber, any existence of signal or traffic and signal direction can be detected..



  • "One-button meter", convenient and easy to use

  • Different adapters for different bare fibers and jacketed fibers

  • Detect a variety of optical tones; 270Hz, 1kHz and 2kHz

  • Powered by 2 units of 1.5V AA alkaline batteries 

Standard Accessories

  • 2 x 1.5V AA dry battery

  • 0.25mm Adapter

  • 0.9mm Adapter

  • 3.00mm Adapter

  • Carrying Bag 

  • User Manual


Specifications are subject to change without notice

Ordering Information

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