Get more fun out of Alexa Routines Use the Alexa app to build your own automations that trigger when a door or window opens—like turning on a light, sending a phone alert, playing a voice alarm, or even having Alexa crack a joke. Easy Installation & Smart Functions The door and window sensor works with compatible Echo devices for easy setup. Monitor doors and windows, get instant alerts on your phone, and create smart routines based on open/close status. More Fun With Alexa Routines Use the Alexa app to create custom routines that trigger when a door or window opens—turn on lights, send phone alerts, play voice alarms, or even have Alexa say something fun like a joke. Upgraded app & alexa skill features When connected with the Third Reality Hub/Speaker, you can easily check battery levels in the app and replace batteries on time. The app also provides history records, so you can see when motion was detected and take action when needed.