Powerheart AED G3 Pro is a fully equipped automated external defibrillator for medical professionals that comes with a color display, 3-lead ECG monitoring capability, and manual de-fibrillation override. It completes a partial charge of the high-voltage electronics weekly, and a full charge monthly. It also calculates electrical impedance and if subsequent shocks are necessary and STAR biphasic technology which escalates the energy to deliver therapy at an appropriate, higher level. Color ECG displays the victim's heart rate, waveform, number of shocks delivered, and the elapsed rescue time — exactly what emergency workers need to know. A 7-year warranty is provided.