For four decades Alarm Lock Systems, Inc. has built a strong reputation as a respected leader in the design and manufacture of electronic and mechanical access and egress control keyless entry products. Originally known worldwide for its superior Sirenlock panic exit and delayed egress exit alarms in full-door and clapper styles, Alarm Lock has nearly eclipsed its original product success with that of another -- the incredibly-popular, innovative Trilogy line of standalone access keyless locks that enable security professionals securing buildings of all kinds to more cost-effectively add dependable wireless access control a door at a time with a field-proven access solution and with a consistent model for every door type in a facility.
Exit Alarms are for unlocking a door and sounding an alarm during emergency conditions people of an emergency panic device, or a push bar . The mechanism consists of a spring-loaded metal bar fixed horizontally to the inside of an outward-opening door. When the lever is either pushed or depressed, it activates a mechanism which unlatches the door and sounds alarm allowing occupants to leave quickly from the building. Exit alarms are typically used to notify users of unauthorized exits. They are just as useful as products that alert users when doors are opened, and for entrance into monitored areas.
In the fields of access control is the selective restriction of access to a place or other resource. The act of accessing may mean consuming, entering, or using. Permission to access a resource is called authorization. Locks and login credentials are two analogous mechanisms of access control.