Protect automated external defibrillators AEDs from abuse and accidental damage with this polycarbonate cabinet. Unlike metal boxes, STI's cabinet allows AED units to be highly visible. It mounts on the wall enabling appliances to be stored in a central location and is capable of housing CPR accessories. This cabinet is secured with a thumb lock, allowing easy access. The polycarbonate is backed by a lifetime guarantee against breakage in normal use. To further protect against misuse, vandalism, and accidental damage, STI equipped this model with a siren. When the cabinet is opened, the siren sounds a powerful 105 dB warning horn, drawing immediate attention to the area 95 dB low volume setting can be set if desired. The alarm does not interfere with legitimate usage of the electronic product. Alarm has many choices including volume, duration, trip delay and arming delay.