The HeartSine samaritan PAD 500P Defibrillator Overview • 8-year warranty • World Leading CPR Advisor • Semi-Automatic Shock Delivery • Easy to Follow Visual and Verbal Guides • Durable • Advanced Technology • Single Battery/Electrode in one replaceable cartridge The HeartSine samaritan PAD 500P Defibrillator combines the very best in public access AED technology. Offering the unique CPR feedback technology, the 500p gives real-time feedback to the rescuer thus maximising the chances of survival!