Door contact, motion sensors, glass breaker sensors, wired and wireless door/window contact. The alarm sensors trigger event happening. Glass breakers trigger a glass broken within range of device. Motion sensor triggers object presence. Contacts trigger door or window being open. All those sensors tied back to alarm system to secure a building or house. We carry the best equipment from the top trusted manufacturers so that you can shop with confidence. Take a look at our large selection of keypads today and give us a call if you have any further questions. We have a great team that would love to help you with all your CCTV security and surveillance needs.