The design of our digital pipette is shown in Figure . The pipette is composed of three parts: a platform, a plunger holder, and a syringe cover. A linear actuator is fastened to the platform with three screws. The plunger of the syringe and the tip of the linear actuator are connected together by the plunger holder. The syringe barrel is fastened by the platform and the syringe cover. The linear actuator is operated by Arduino that communicates with the robot workstation through a USB-serial communication protocol. The accuracy of our pipette was evaluated by transferring water from one beaker to another beaker using a robot arm equipped with a gripper with two fingers. We also measured the accuracy of a syringe and a micropipette handled by human users as the baselines. The results of experiments are shown in Table and Figure . Our digital pipette device could dispense water within 0.5% error. The standard deviation of the poured amount was smaller than the hand-driven syringe and comparable with the micropipette.