The AED Pro provides advanced capabilities for BLS and ALS users with innovative Real CPR Help technology for depth and rate of chest compressions. The See-Thru CPR® technology filters CPR chest compressions, displaying the underlying cardiac rhythm. The AED Pro is unmatched in its ruggedness and durability and is ideal for any environment. The AED Pro Semi-auto/Manual automated external defibrillator includes backlit LCD screen, ECG display, soft carry case, rugged over-molded outer housing, multi-patient internal memory, IrDA port, operators guide, five year factory warranty.