The all-new ZOLL AED 3 Automated External Defibrillator takes excellence to new heights. It enhances the outstanding support for rescuers that the AED Plus has offered since 2002. Crafted from years of research into usability for both trained and untrained rescu, it is user-friendly and features enhanced Real CPR Help, ZOLL's real-time CPR feedback technology. The AED 3 is also cost-effective, with low ongoing ownership costs, universal adult/pediatric electrode pads, and a battery that lasts five years. comes in both semiautomatic and fully automatic models while the AED 3 BLS model for professional rescuers includes an ECG display, CPR Dashboard, and a durable case.