HeartSine Samaritan PAD 500P with CPR Advisor (Semi Automated Defibrillator)
The HeartSine® Samaritan® PAD 500P is a semi-automatic defibrillator that delivers a potentially life-saving shock for someone suffering from sudden cardiac arrest. It also gives CPR advice to assist the rescuer with defibrillation. By analysing heart rhythm, it can decipher whether an electric shock is required. The device will prompt the rescuer to press a button that will administer the shock. If a normal heart rate is detected, the device will not be able to administer the shock.
- 8-year Warranty
- CPR advisor function, which guides the rescuer through the process of effective CPR. It can advise on compression pressure and speed based on casualty feedback from the heart. Unlike other devices, advice is not based solely on the depth of compression but on impedance changes of the casualty. This gives the patient the best chance of survival and the rescuer the assurance they have done everything they can.
- Compact, lightweight, and robust. It provides high protection against dust (IP56 rated) and water ingress and can be stored in an external cabinet for easy public access.
- Designed for adult and paediatric use (from 1 year onwards) and offers an easy-to-use system for individuals with limited defibrillator experience.
- Includes a soft-touch carry case, and a unique Pad-Pak system combining battery and electrode pads, making replacement seamless. Instead of managing multiple components, only one needs to be replaced every four years.
- 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

Technical specifications
- Weight (without carry case): 1.1 kg
- Dimensions (without carry case): 21.5 cm (H) x 18.5 cm (W) x 5 cm (D)
- Dimensions (with carry case): 23.5 cm (H) x 20.5 cm (W) x 11 cm (D)
- IP Rating: 56
- Semi Automatic ECG: No
- Energy Delivery: Escalating
- Manual Override: No
- Memory: 45 mins
- Battery Standby Life: 3.5 years
- MDD Compliant
Standards / Certifications
- UKCA Marked, CE Marked














AidenBrooks2025 (Verified Customer) –
I have found this defibrillator to be a highly reliable unit in both public and clinical settings. Its built-in CPR advisor gives real-time feedback on the quality of chest compressions and the single cartridge system reduces maintenance complexity. Many users on Trustpilot rated it highly for ease of use and portability, noting it offers peace of mind knowing quality equipment is on hand.