L-com offers an extensive line of precision dual wavelength (1310/1550nm) Singlemode fiber optic attenuators. The FOATSCA-01D is the perfect solution for attenuating Single mode fiber connectors for both lab and commercial applications. The FOATSCA-01D utilizes an "APC" polish on the SC connector and is rated to 1db. Constructed of the highest quality materials and factory tested, this series offers the widest array of connector styles and polish types. Order today!