- Reliable Sealing Performance: The OTDR extension box is designed with superior sealing capabilities and is explosion-proof, ensuring enhanced durability and longevity in various environments. - Elimination of Blind Spots: Utilizing the OTDR test extension cable significantly reduces blind spots caused by strong light reflections and pulse width, leading to more accurate test results. - Compact and Lightweight Design: With no welded connections in the fiber, this extension box is lightweight and portable, making it ideal for field applications and easy transportation. - Low Loss Performance: The loss level is maintained at less than 0.5 dBm/km, providing solid work efficiency and making this product suitable for professional use. Applications: 1. Field Testing: Perfect for technicians conducting OTDR tests in remote locations, where portability and reliability are crucial. 2. Network Maintenance: An essential tool for network engineers who need to eliminate blind spots in fiber optic networks for accurate diagnostics. 3. Installation Projects: Ideal for use in new fiber optic installations, ensuring precise measurements and reducing potential errors during setup.