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Cardiac Science Powerheart AED G3 Plus Defibrillator features RescueCoach and CPR metronome to pace chest compressions. It calculates electrical impedance and if a second shock is necessary, this proprietary biphasic technology escalates the energy to deliver therapy at an appropriate, higher level. It is reliable and east to use. The AED text screen is helpful in noisy and chaotic environments.

Cardiac Science Powerheart AED G3 Plus Defibrillator features RescueCoach and CPR metronome to pace chest compressions. It calculates electrical impedance and if a second shock is necessary, this proprietary biphasic technology escalates the energy to deliver therapy at an appropriate, higher level. It is reliable and east to use. The AED text screen is helpful in noisy and chaotic environments.