Occlusion Pressure : Low ,Medium and High[Adjustable] Audible &Visual Alarm : Near Empty ,Empty, Occlusion, remove,low battery exhausted,device disengaged , motor trouble, falllng of the injector AC power fail AC : Worklng Voltage:100 v~240 Frequency: 50 Hz/60 Hz DC : Inner Power of 10.8V, Internal rechargeable NaMh battery