2Pcs Fiber Visual Fault Locator 30Mw + Fc/Lc Adapter Kit, Vfl 30Km Include Specification: What's in the box: Features Attribute: 2.Metal matte paint design 3.Widely Used 4.Practical design, excellent function Tips 2PCS Visual fault locator can easily and accurately detect all kinds of optical fiber faults, such as fracture, bad connection, bending, opening, etc. The detector emits a 650nm red light for optical fiber tracking. Optical fiber rupture or fault will refract light and produce a bright glow around the fault area. So you can easily find and fix bugs. The VFL + FC/LC connector kit includes an FC interface to LC interface adapters. 2.5mm universal connector - Detector connectors are compatible with round and square ST, SC, MU, FC, and LC interference of different optical cables. The 30mW VFL has a strong red light output and can travel up to 30km through optical fibers. Efficient power circuits ensure stable power supply. Small volume, lightweight, convenient for the field test, with constant output power, low battery power alarm, long battery life, multi-interface adaptation, remote detection, and other functions. We have more than 10 years of professional production experience and can provide service response within 24 hours. We are committed to providing every customer with the best products and services, if you need help, please feel free to contact us.