Chain Door Alarm

A safety device for the home, while traveling, for your dormitory room, your motel room or any place where you want the added safety if someone unwanted is trying to enter your room. When the door knob is turned it sets off an alarm. It will get your attention or awaken you. This alarm hags on the inside door nob. It is portable and travels with you. When you are inside it gives an additional level of safety. Requires batteries.