The linear pump LP.* consists of miniature motor with digital encoder and planetary gear, which is in aluminium body of pump. The motor drives the screw which moves the piston in syringe in both directions. The pump is designed for extremely small applications such as medical or military applications. It can be used in hand-held devices. The main advantage is no pulsation and easy connection with syringe piston. The pump can supply liquid through flow cells FC2, FC3 or FC4. Linear pump is delivered with optional Hamilton syringe holder