AED Defibrillators and accessories. Automated External Defibrillators save lives. They are used in homes, schools, airports, and businesses in the event of Sudden Cardiac Arrest (SCA). Many of them are inexpensive and can be used to provide peace of mind in the most difficult situations. Standard Automated Defibrillators come with easy instructions (many have voice prompts) as well as simple instructions. The systems automatically check to see if the heart needs a shock, and then provides the necessary voltage to the heart. Even though some cases of heart failure are not treatable, there are many cases each year where timely defibrillation bought enough time for medical professionals to arrive. Popular brands of defibrillator include Philips, Zoll, Samaritan, Defibtech, Cardiac Science, Medtronic, and Welch Allyn. AED trainers can also be purchased for first responders and first aid needs. Defibrillator replacement pads are also essential for new usage after an emergency.