Feature: 1. Testing Tools: Mainly applied to make up for the blind spot of OTDR test to detect the dead zone and improve the accuracy. 2. Reliable Work: Designed to have a long length up to 300 meter, this tool also has 50ns pulse and 10.00 threshold as well. 3. Better Design: Comes with SC APC connecting interfaces on both sides, the whole operation is very easy and labour saving. 4. Good Material: The application of high quality ABS materials allows for excellent durability for long use, very reliable. 5. Easy Carrying: You can roll the cable up to save the storage space for carrying, suitable for indoor and outdoor working. Specification: Item Type: OTDR Launch Cable Interface: SC APC to SC APC Material: ABS Length: Approx. 300m / 984.25ft Pulse: 50 ns Threshold: 10.00 . Package List: 1 x OTDR Launch Cable1 x English Report1 x Green Coupler1 x Red Coupler1 x Hook1 x Sling1 x Cable Tie1 x User Manual Note: Pay attention to safety protection when using.