This research aims to develop a fluid, dynamic teaching aid for Senior High School. Visualization tools based on dynamic fluid materials. The method used in the research is the ADDIE development model (analysis, design, development, implementation, and evaluation). However, it is limited to ADD (Analysis, Design, and Development). This tool is designed using an Arduino UNO sensor, which can be connected to the sensor, and is made with 3D design with the help of Blender 4.1 software—the water flow sensor functions as a discharge meter. The LCD screen displays the results of the calculation of the discharge and water level in the venturi pipe. The tool has a guide sheet for programming procedures using WOKWI software. Based on the simulator results, the program code applied to the WOKWI simulator runs well with the Water Level Pump indicator ON/OFF. Media designs include Arduino, Resistor, Slides Witch, Arduino Atmega8, LED display, water pump, water pipe and venturi, DPDT relay, LED lamp, and ultrasonic distance measuring sensor. So, it can be concluded that the water flow or water level sensor program code and the continuity principles teaching aid design trials went well, so the implementation stage for high school level students can be carried out for further research.