Adult Electrode Pad For ZOLL AED Plus or Pro 5yr Shelf (1/EAWhile the majority of AED pads come with one set of electrodes on two pads that must quickly be placed on the Sternum and Apex of a SCA victim, Zoll knew there must be an easier way. In order to help eliminate confusion and speed up the rescue process, the CPR D padz were invented. A rescuer need only open up the padz package and place the pre connected electrode directly in the center of the cardiac arrest victims chest. No confusion, no mistakes.