... Three work model: Rate setting model, Time and volume setting model, and weight setting model.Alarm fuctions: Occlusion, syringe ... the LCD.Specifications:*Adapted syringe: 10ml, 20ml, 30ml and 50ml*Flow range: 50ml: 0.1-1800ml/h 20ml ... scanners, ECG etc. All are of good quality and reasonable prices. Pls send your enquiries to us if ... us. Micro syringe pump with bolus function and unique LCD screen