Fiber Instrument Sales is a manufacturer and full-line distributor of communication fiber optics; test equipment, connectors, cable and cable assemblies, tools and tool kits, fiber optic consumable products, Category 5e and 6 cabling products, active network equipment, and fiber optic security systems and components.

FIS serves over 11,000 customers from all segments of the fiber optics industry including: telecommunications, contractors, resellers/distributors, researchers, government, education, cable TV operations, and telephone R&D facilities. FIS is international in scope, serving customers in 110 countries.

FIS maintains one of the largest fiber optic inventories in the industry and provides same-day shipping for most orders. Overnight shipping is available.

Markertek is an authorized dealer for the entire Fiber Instrument Sales line. If you don't see what you're looking for, contact us and we'll do our best to get it for you.