1. A slender pen type 650nm red visible light fault locator suitable for single multimode optical fibers

2. Designed specifically for on-site construction personnel, it is used to efficiently and economically track optical fibers during or after the installation of optical networks, sort optical fibers, and conduct on-off testing

3. Find fiber optic breakpoints, light leakage points, stress points, and problematic connectors

4. Universal interface, suitable for all 2.5mm plugs, such as FC, SC, ST, E2000, and APC connectors

5. LED indicator lights display the on/off, continuous mode, pulse mode, and low battery status of the laser light source

6. Includes two 1.5V AAA batteries, packaging box, lens cap, and instruction manual

7. Additional switches to prevent accidental opening of light sources and waste of batteries

8. FO-VFL without 1.25 mm adapter (Miller code: 80920)

9. FO-VFL with 1.25 mm adapter (Miller code 80910)

10. Separate 1.25 mm adapter (Miller code 80911)

11. Up to 7 kilometers for single mode fiber and 3 kilometers for multimode fiber