... and low.9. KVO function: When finish the total volume of an infusion, the pump will alarm and enter KVO state. ... loose, Operation error, Low battery, device failures.Three levels of alarm volume LOW, MEDIUM or HIGHBolus functionBolus rate:10-1200ml ... Built-in Lithium Battery: Rechargeable,11.1V,2000mAh.6 hours of continuous operationAccessories:AC power line, Operational manualProtection ClassClass I, ...