A technologically advanced defibrillator that gives rescuers real time feedback

Cobalt has proudly developed a range of Heartsine defibrillators over the course of the last 12 years. Out of all the models, the Samaritan PAD 500P has proved to be the standout product in terms of reliability and longevity. The Samaritan PAD 500P defibrillator is the most innovative device available to support rescuers by providing feedback on the effectiveness of their CPR efforts in real time. The small size, weight and affordability ensure this product is a front runner in the field today.

The defibrillator is intended for use by non-medical users and professional rescuers in domestic environments – cases where a cardiac arrest has occurred out-of-hospital.

It was developed specifically to be intuitive and easy to use so that non-professional rescuers need only minimal training and management of the defibrillator to use it effectively.

Support is given by a sophisticated software CPR advisor, guiding the required force and speed of compressions for the victim. Included directives are “push harder”, “push faster”, “push slower”, or reassurance that they are performing good compressions.


  • Quick release wall mounting
  • Water ingress protection of IP56 – suitable for situations on docks, boats and wet sports fields
  • User-friendly voice guidance system & simplified controls
  • LEDs & diagrammatic label provide graphical guidance coinciding with vocal instructions
  • 1kg (2.4lb), 56% smaller than other AEDs on the market


  • Almost 10 years after its release it is still a front runner in the field
  • Maintained its position as one of the most compact & easy to use defibrillators on the market


  • Industrial Design
  • Product Engineering
  • Prototyping
  • Tooling Management
  • User interface design
  • Medical Device Design/Medical Product Design
  • Jack Magree
  • Warwick Brown
  • Brett Capron
  • Rob Cuzner
  • Michael Cornish
  • Simon Andresen
  • Shannon Smith
  • Ryan Harper
  • Matthew Lewandowski
  • Rob Clifton

Designed for practicality

It was important to the design that the product incorporated Heartsine’s signature elements that are consistently reflected and refined across Heartsine’s product family. The metaphorical inspiration for the design aesthetic was the unassuming life-ring, a symbol that any rescuer would easily recognise as a life saving device. The TPR overmoulded grip also provides a seal around the product’s diameter, which is so successfully watertight it is often specified for situations on docks, boats and even wet sports fields where a shock may need to be administered.

 The PAD500P weighs just 1.1kg (2.4lb) and is up to 56% smaller than other AEDs on the market. When the original 500P was developed nearly ten years ago it was one of the very first defibrillators to be compact enough to be easily used and carried. The small size and weight ensure the product is still a front runner in the field today.

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