The HP 43100 Series defibrillator is a compact and easy to use system. The HP 4300 series defibrillators operate on AC voltage or its own internal battery and charger. The Hewlett Packard 43100 has a built-in ECG monitor which can be used for both long and short term monitoring. Critical ECG data is displayed on a non-glare screen along with lead selection, heart rate, date, time, and battery status. The built-in thermal printer provides a clear annotated waveform, Heart rate, and other data. Adult and pediatric electrodes are both built into self-storing paddles.