LIFEPAK 1000 AED is Strykers Professional grade AED designed for use in the squad car, onboard a fire engine or out in the field, you're always ready to respond to sudden cardiac arrest emergencies. The LIFEPAK 1000 provides powerful defibrillation, long battery life and robust durability that can stand up to severe environments. Designed to ride along in any vehicle without damage from continuous vibrations and other movement. Escalating energy to 360J biphasic for difficult to defibrillate patients.Provides battery power for up to 220 shocks – escalating to 360 joules – delivering 17 hours of monitoring time