The AED wall cabinet sounds an alarm instantly once the door has been opened. The alarm alerts people in the vicinity of the emergency, improves security and acts as a deterrent against unnecessary tampering. Compatible with all major AED models. The cabinet is constructed from a white powder coated metal, with a stone enameled finish and toughened glass door for durability and visibility. Toughened durable glass door. Compatible with all AED models. Safe and visible. Alarm sounds when opened. Wall mountable.