Just the features that you want, and none that you don't want to pay for. Holds small or big syringes up to 60ml. Pump continuously until user stops pump. Infusion rate can be changed while pumping. Remembers previous settings on power up. Power failure mode allows pump to continue pumping after a reset. Syringe purge mode. Displays total volume dispensed in ml or uL units. Maximum pumping rate of 1500ml/hr with a 60ml syringe. Precise reproducible flow rates. Selectable infusion rate units: ml/hr, uL/hr, ml/min, uL/min. Infuses only! Just the features that you want to pay for.