ZOLL Medical AED Plus semi and fully-auto units are known in the defibrillator industry for their creative approach to design. Real CPR Help: audio, visual, and text displays guide users through the entire rescue process. Real Time Feedback: the ZOLL AED Plus uses its CPR-D Padz to give real-time feedback based on the CPR being delivered, evaluating depth and rate of compressions. ZOLL defibrillators are perfect for bystanders who have never used an AED. *REPLENISHMENT Accessories available!