AED Plus Semi-Automatic w/CPR-Defibrillator-Pads EachZoll AED Plus Semi Automatic w CPR D pads. Sold Each. Includes a hand placement locator, an accelerometer, electronics and a processing algorithm that works together to measure vertical displacement in space as compression occurs. Manufacturer: ZOLL Product Name: AED Plus Semi Automatic w CPR D pads Model: DEFIBSACPR Marketing Information: Semi automatic model requires the attendant to deliver the shock directly themselves by pressing the starter