SKYSHL 1310nm/28dB+1550nm/26dB SM Fiber OTDR An Optical Time Domain Reflectometer (OTDR) is an important instrument used by organizations to certify the performance of new fiber optics links and detect problems with existing fiber links. With the rapid advancements in fiber optic technology, OTDR testing methods have become indispensable to building, certifying, maintaining and troubleshooting fiber optic systems. SKYSHL provides a new Optical Time Domain Reflectometer(OTDR)-SS304T series. They