Performance Optical Fiber Tester: Features a 2200 mAh rechargeable battery to provide reliable endurance for networking tasks, enabling longer use between charges. Versatile VFL Output Power: Offers adjustable output power options of 10, 15, 20, 30, and 50 mW for flexible and precise fiber optic fault location. UserFriendly Design: Equipped with a 2.5 mm universal connector and an LED indicator to simplify workflows and provide clear visibility of faults and performance. Compact and Lightweight: Dimensions are 37 x 39 x 147 mm with a weight of 165 g, designed for portability and onthego technicians. Use scenario: Infield fault location in data centers or campus networks, using selectable VFL power to locate defective connectors or breaks along fiber runs. Use scenario: Patch panel verification during installation or maintenance, enabling quick continuity checks and fault identification without removing components. Use scenario: Onsite fiber testing in spaceconstrained environments (telecom cabinets, wiring closets), where portability and adjustable power help identify issues efficiently.