VFL-2100 Series Visual Fault Locator (Red Light Pen) adopts a 650nm wavelength semiconductor laser and a high-quality laser head, featuring stable light emission and the ability to quickly and accurately determine the location of fiber optic breakpoints. It has an integrated design with an all-aluminum body, manufactured using CNC processing technology, boasting a compact and portable appearance along with exceptional internal shock resistance. It uses a 2.5mm universal fiber optic connector, suitable for fault detection of fiber optic jumpers, bare fibers, and other fibers that can leak red light. When used in conjunction with an OTDR, it compensates for the defect of the near-end blind zone.

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