Simple inexpensive device to alert you to open doors, windows, cupboard, drawers or anything you wish.  This unit is battery operated with an adhesive back for easy mounting.  It also has a on and off switch for your convenience. This is a perfect gadget to secure doors and windows in your home, prevent sleep walking, guard out buildings, and protect valuable or private items. Additionally, a window and door alarm makes a great travel companion with no legal issues to worry about.