... , target volum completed, syringe loose, operation error.KVO function: After injection completes, the lowest flow be infused automatically ... 3.5kgPls notice that we also supply oxygen concentrators with CE, oximeters with CE/FDA, monitors, aspirators, Ultraousnd scanners, ECG ... scanners, suction pump etc. For details, pls feel free to contact us. Micro syringe pump with bolus function and unique ...