Elevate your Defiant Smart Security System by fortifying every entry point in your home, and receive real-time notifications the moment they are breached. The Defiant Smart Security System Contact Sensors are designed for straightforward, do-it-yourself installation and can be easily installed to any door or window frame in your home. From your smart phone, you will be able to arm and disarm the alarm system, set up and manage multiple access PINs, review activity logs, customize the sound, volume and duration of alarms and chimes. Seamlessly link them to your Defiant Smart Security System and receive instant mobile alerts via the Hubspace App, ensuring you are always the first to be informed when any access point is compromised. Requires Defiant smart security system - SKU 1010516033.