OTDR FBG Reflector Male to Female Adapter Type 1650nm OTDR FBG Reflector SC/APC at Standard Insertion Loss 1650nm OTDR FBG Reflector SC/APC at Low Insertion Loss 1650nm Bidirectional OTDR FBG Reflector SC/APC at Standard Insertion Loss 1650nm Bidirectional OTDR FBG Reflector SC/APC at Low Insertion Loss 1650nm OTDR FBG Reflector LC/APC at Standard Insertion Loss 1650nm OTDR FBG Reflector LC/APC at Low Insertion Loss Pigtail Type 1650nm OTDR FBG Reflector - SC Pigtail 1650nm OTDR FBG Reflector - LC Pigtail Stainless Steel Tube Type 1650nm Bidirectional Reflector - 1st Generation 1650nm Bidirectional Reflector - 2nd Generation 1650nm Bidirectional Reflector - 3rd Generation FBG Red Light Detector FBG Red Light Detector Tracking Fiber Optic Patchcord