... the safety of patients even when one CPU breaks down Powerful alarm system with both audible and visible alarm signs ... limit, Accumulated infusion volume, Bed No., AC Power indicator, Battery capacity, Battery charge indicatorAlarm Type OVER, OCCL., AIR, EMPTY, Control abnormal ... low batteryBattery Type 7.4 V, 1600 mAh lithium polymer battery Life More than 2 hours’ continuous running (25 ml/h), ...