🔍 Discover the Future of Fiber Testing! Equipped with an LED flashlight and intelligent power-saving technology for long-term fieldwork. Experience a user-friendly interface with a 4.3-inch touch screen for effortless navigation. Enjoy up to 12 hours of continuous testing with a robust 4,000mAh lithium battery. Store and analyze up to 200,000 curves with built-in 8G memory and USB connectivity. Integrates multiple functions including Auto OTDR, OPM, VFL, and RJ45 tracking for all your testing needs. 200k data storage 100km range 12h battery life The QIIRUN Fiber Optic OTDR Tester is a cutting-edge, multi-functional device designed for professionals in the field. With a 4.3-inch touch screen, it offers intuitive operation and integrates various testing functions, including Auto OTDR, Optical Power Meter, and Visual Fault Locator. Its powerful battery ensures long-lasting performance, while extensive data storage capabilities allow for efficient data management and analysis.