FD Reflective Type Fiber Optic Sensors Panasonic Industrial Automation FD Reflective Type Fiber Optic Sensors offer reduced risk of breaking and bending during installation and tough, high-quality fiber in a reflective package type. The FD series features uniform beams at the fiber aperture for stable sensing. The stainless steel fittings used for fiber heads provide improved mounting strength and conform to RoHS. The comprehensive range of product types includes threaded, square head, cylindrical, sleeve, flat, small spot, narrow or wide beam, convergent reflective, liquid leak / liquid detection, and resistance to oil, chemicals, heat, and vacuums. Panasonic Industrial Automation FD Reflective Type Fiber Optic Sensors can be bent with precision and used on moving parts, all while offering high quality for applications.