Choose a Specification Ac Power Amperage Analog ECG Output Bandwidth Battery Battery/Line Power Biphasic, Energy, J Capacity, Min Charging System Charging Time, Hr Common Mode Rejection Communications Defibrillation Display Expiration date Frequency (Hz) Heart Rate Display Height Length Memory Capacity Output Current Patient Connection Power Supply Voltage Protocol Configured Pulse Rate QRS Detection Range Saturation Accuracy Saturation range S/N SpO2 Update Averaging Rate Stored Data Sweep Speed, Mm/Sec Temperature Warranty Waveform Display Sweep Speed Waveforms Width Year of Manufacture