Designed Security, Inc., of Bastrop, Texas, has introduced the Entry Sentry tailgate detection system. It uses 32 infrared sensors to detect tailgating through any door or hallway, setting off an alarm when more than one person enters at a time. Its advanced sensor technology recognizes inanimate objects, while adjustable sensitivity helps eliminate false alerts. This simple solution can be configured to trigger local or remote alarms and integrates with access control systems. The company also offers door alarms, annunciators, pushbuttons, key switches, tailgate detection, and man-trap systems.