SCJFY-TS-4080B sensor consists of two bonded and two free single mode optical fibers (BOTDA / BOTDR) and two free multi mode fibers (ROTDR) embedded in a polyethylene thermoplastic profile. The bonded single mode fibers are used for strain monitoring with BOTDA / BOTDR system , while the free single mode fibers are used to create an optical loop for BOTDA measurement or for temperature measurements with BOTDA / BOTDR system (quantitative if sensor deformation < 0.2%, qualitative if sensor deformation > 0.2%) and to compensate temperature effects on the bonded fibers. The two additional multi mode fibers are insensitive to mechanical strain and used for temperature measurement to compensate temperature effects through Raman system.