eCylinders give airports - or virtually any facility where controlled access is a priority - an added layer of security with audit, scheduling, and access control for doors, fences, file cabinets, cash drawers, or storage closets. With eCylinder, access rights can be changed easily to avoid unauthorized entry. eCylinders are inexpensive (as little at $300 per door) and easy-to-use (retrofit takes 15 minutes); the eCylinder not only manages authorized entry, but tracks who comes and when.