Features 1,Product Usage: The test extension cord box is designed to compensate for the OTDR test dead zone, effectively reduce measurement uncertainty, improve measurement efficiency and accuracy 2,Versatile Application: This OTDR launch cable box is suitable for a wide range of fiber optic application scenarios, including LAN, WAN, and MAN, ensuring broad compatibility and practicability 3,Sealing Structure: Featuring superior sealing performance, water proof and explosion proof, this testing cable box is suitable for various environments, and for deployment in diverse conditions 4,Convenient Use: This testing cable box has compact size and lightweight design, offers convenience in portability and handling, thanks to its fiber optic jumper construction without fusion joints 5,Robust Materials: This OTDR launch cable box is manufactured with sturdy materials for durability, guaranteeing stability and longevity in performance, even under rigorous or frequent use Specification Item Type: OTDR Launch Cable Box Fiber Type: SM G652D 9 or 125um Length: Approx. 2000m or 6561.7ft Connector: SC Angled Connector Typical Loss: 0.33dB or KM at 1310nm, 0.19dB or KM at 1550nm Operating Temperature Range: -40-85℃ Package List 1 x OTDR Test Extension Cord 1 x Storage Bag 1 x Test Report Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.