The FSM-50S Fusion Splicer sets the standard for core alignment fusion splicers. The FSM-50S is the fastest field splicer available, and can complete a splice and tube heat in a total of 44 seconds. Important features include the smallest size and weight in the industry and the legendary ruggedness Fujikura provides. The FSM-50S also includes user friendly features such as calibration-free arc adjustments (with AUTO splice mode), automatic fiber type identification and reduced operational steps. The FSM-50S also offers increased flexibility for various splicing tasks with user-selectable front and back monitor positioning. Automatic core to core, low-loss splicing regardless of fiber quality or age. Multiple pre-programmed modes for specialized splicing.