... the drug libraryl Precision: ≤±2%(machine precision<±1%)l Occlusion pressure: 3-level is available L: 300±100 mmHg (40. ... (the alarm isnt disable within 2 min. after silenced), pressure sensor failure, capacity of battery nearly empty, capacity of battery exhausted ... syringe brand, battery capacity indicate, local time, flow rate, system pressure etc.l Power: AC220V±22V,50HZ±1HZ Internal battery: DC12V ...