Zoll has implemented most innovative digital technologies to its AED Plus series in attempt to make the emergency situations as stress-free as possible. As a result, the AED Plus Fully Automatic model simplifies the process of CPR delivery to the maximum. The Fully Automatic unit takes the charge and delivers shock with no assistance from the side. The AED starts a 3 seconds countdown so you know when to stay clear and await the shock. The count down is shows in a form of the text on the screen in addition to an audible alarm. This External Defibrillator increases the chance for survival allowing the early intervention in the situations of a sudden cardiac arrest.