CPR Stat-padz is designed for use with Zoll AED plus, AED pro, E series, M series, X series and R series defibrillators. The HVP (high viscosity polymer) gel reduces skin effects by up to 96% over conventional electrodes. The two piece construction ensures all therapy options are available to the ALS responder. The design gives it a utility in both the anterior/anterior and anterior/posterior placement. The real CPR Help® provides real-time feedback on compression rate and depth during CPR.