Kamoer DIP Stepper Motor Variable Speed Foot Switch Controllable RS485 Lab Liquid Filling Peristaltic Dosing PumpIntroduction:High flow, High lift, Low cost,LED display Intelligent power off memory You can set the running interval DIP intelligent peristaltic pump supports forward and reverse rotation. The speed is controlled by the knob to control the flow, and the foot switch can also be used to control the start and stop, which is very convenient