Medeco Security Locks of Salem, Virginia, has released M3 Logic, its newest Logic electronic cylinder platform. It allows users to control a combination of mechanical cylinders and electronic cylinders using the same key. The system features audit trails, scheduling, and the ability to easily add and delete users, yet it requires no wiring, door or frame modifications, or additional hardware. The company’s eCylinders can be used indoors or outdoors, and can be retrofitted into existing hardware in less than five minutes. The key is protected against duplication and holds up to 1,000 audit events.