The Modern Metals offers the 184SR3 AED/Oxygen Semi-Recessed Cabinet with non-alarmed, alarmed, and alarmed and strobe combination.  The cabinet is made to hold an AED and emergency Oxygen.  It has an adjustable shelf.  When the cabinet has been opened the alarm in the cabinet will sound loud enough for anyone in the vicinity to hear.  The alarm will alert the public that an emergency has taken place and assistance may be needed.  The strobe on top of the cabinet is a visual alert to notify the public at the cabinet has been opened.  An AED needs to be accessible at all times.  Inside Dimensions: 30 1/2"x15 1/2"x9 1/2"