Phillips Hearstart FR3 Professional Defibrillator with Text Display. Philips Hearstart FR3 is a professional defibrillator for use by Emergency Medical Services (EMS) responders and medical professionals. - Fast therapy with automatic turn on when case is opened - Pre-connected SMART pads III which are tested daily, can be stored out of the foil pouch so that the patient can be quickly connected - Evaluates the patient's heart rhythm and advises whether to initially treat shockable rhythms with shock, or with CPR immediately followed by a shock