The FR2+ uses the proven SMART Analysis algorithm to ensure that a shock is delivered only if it is appropriate. And Philips low-energy SMART Biphasic waveform delivers a highly effective defibrillation shock that is also gentle to the heart. No other external defibrillation therapy has been supported by more clinical data. SeniorCare EMS is one of the very few ambulance companies State-wide to offer AED's on all of it's BLS units.​