Want to know when a window or door opens or closes? The Scout Alarm Wireless Window and Door Sensor has you covered. It is battery powered, so you don’t have to deal with any new wiring. You get custom alerts and custom responses based on activity. You can use it to monitor your safes or other places in which you stow other objects.
Scout can be applied to windows, cabinets, and other places. It has a push-and-stick installation. Sets you back $29.99.