Cardiac Science offers the Powerheart AED G3 Pro. The company's latest boasts a ECG color display, manual override features, multiple rescue capability, and advanced technology to provide rescue professionals extended capabilities for treatment of sudden cardiac arrest and continuous cardiac monitoring. The G3 Pro features Cardiac Science's patented RescueReady technoloy, which assures first time, every time shock delivery, as well as intuitive and comprehensive voice and text prompts that guide the user through the rescue. This technology also includes daily, weekly and monthly self-tests of battery, internal electronics, software and pads.