There is nothing like the HeartSine Samaritan 500P public access defibrillator with CPR advisor technology.
Investing in an AED is a great step forward, because it can increase the chance of survival for witnessed Cardiac Arrest from 5% to 85% – when combined with the other links in the chain of survival. But most models on the market will leave you vulnerable on your ability to ensure good CPR. Even AED’s that claim to have CPR feedback technology do not have the ability to determine effectiveness of your compressions – they simply are basing the feedback on how hard you are pushing. Now unfortunately there is a huge difference from individual to individual, in appropriate force and pressure required to perform effective compressions.