OFC-550 Fiber Identifier can identify the optical fiber quickly and precisely without any damage and interruption of communication to point out whether there is optical signal passing through, and the direction of light.

The OFI 400 of NoYes is a new fiber identifier with backlight LCD Monitor and all the capacity of OFI200, able to examine several audio signal (270Hz, 330Hz, 1kHz, or 2kHz), save electricity and set up reference values.

The practical, user-friendly, handed NoYes device can examine the optical signal of single-mode optical fiber.