Designed for the ordinary person in the extraordinary moment . 

The Philips HeartStart defibrillator acts as your personal coach to guide you through the process of treating a victim of suspected sudden cardiac arrest. The OnSite defibrillator provides real-time guidance through simple, step-by-step voice commands and CPR coaching. The HS1 is the easiest to use defibrillator on the market and it is among the fastest in class at delivering shock treatment after CPR periods. It’s effectiveness in actually helping to save a life is second to none.

Step-by-step guidance so you know exactly what to do. 

Philips HeartStart HS1 defibrillator acts as your personal coach to guide you through the process of treating a victim of suspected sudden cardiac arrest. The OnSite defibrillator provides real-time guidance through simple, step-by-step voice commands and CPR coaching. The intelligent sensors can detect what step you are at and adjust to your level of expertise. Ease-of-use is directly related to the chances of survival. The HS1 is the only Over-The-Counter Approved defibrillator in the world. This is independent proof of the fact that the Philips HS1 is the easiest to use (or if you like, most idiot-proof) defibrillator of all.

Step-by-step guidance so you know exactly what to do. 

Philips HeartStart HS1 defibrillator acts as your personal coach to guide you through the process of treating a victim of suspected sudden cardiac arrest. The OnSite defibrillator provides real-time guidance through simple, step-by-step voice commands and CPR coaching. The intelligent sensors can detect what step you are at and adjust to your level of expertise. Ease-of-use is directly related to the chances of survival. The HS1 is the only Over-The-Counter Approved defibrillator in the world. This is independent proof of the fact that the Philips HS1 is the easiest to use (or if you like, most idiot-proof) defibrillator of all.

Ready to use when you need it.

Setting up the HS1 is easy and quick. The pads and battery are already installed. Just pull the green tab to launch the initial self-test. The HS1 is easy to maintain. It performs more than 85 self-tests monthly, weekly and daily (including the proper working of the pads) so you can trust that it is ready-to-go if needed. It can go four years between battery replacements. If one of the self tests fail, the device will start chirping loudly to warn you that it is no longer ready-for-use. After pressing the flashing blue button, the device will tell you what needs to be done for it to be ready-for-use again.

Before you can deliver a shock, the OnSite automatically checks to make sure a shock is necessary and that the right, personalised therapy is given. If you install the infant/child Key (FRx), or the infant/child SMART Pads Cartridge (HS1), the defibrillator will automatically adjust to a lower energy level and modify the coaching instructions to help you provide infant/child CPR periods.