The ZOLL AED PlusTM is an automated external defibrillator (AED) that has been designed to support the full Chain of Survivalby supporting effective CPR. The ZOLL AED Plus provides Real CPR HelpTM with instantaneous feedback on rate and depth of compressions, giving rescuers the confidence they need to help all sudden cardiac arrest (SCA) victims, not just the victims who require defibrillation. The design of ZOLL’s CPR-D•padz is based on extensive human anthropometric data and studies designed to accommodate the wide range of patient sizes and shapes and to ensure that a one-piece electrode meets the needs of emergency AED use.