SPECIFICATIONS: 1. Components and materials shall be new and of recent manufacture and undamaged. 2. An exit aisle shall be formed by a minimum of two sensing antennas. All exiting patrons will pass through this exit aisle. Each corridor shall be a minimum of 36" wide at its narrowest point. 3. Wider corridor requirements: The corridor distance can be increased to 60” (between the antennas) depending on the site environment and the tags in the collection. At the time of installation, the system can be set up and tested to determine the ideal antenna separation taking into consideration the customer’s preferences and requirements. 4. System shall detect electromagnetic (EM) security tags and be compatible with any existing EM technology. 5. 5. A wide variety of security tags must be available to suit the specific needs of Library, including 6.5” and 5” tail tags single and double sided, 5” sheet tags single and double sided and CD/DVD circle overlay tags 6. 6. System shall have both audible and visible alarms. Volume and tone of audible alarm shall be adjustable.