Alarm.com?s Smarter Access Control is a powerful, easy-to-use solution for commercial properties that seamlessly integrates with the Alarm.com for Business platform. This platform enables intelligent automation and features, such as disarming when badging in, locking doors when arming, and tagging access events on the video timeline.The X1100 Four Door Controller and Power Kit comes with an X1100 Door Controller and an X100 Two Reader Expansion Module pre-wired to a 12/24 VDC dual-voltage power supply. Installation is easy with this self-contained kit that can provide power for a complete 3- or 4-door access control system.