The detail of this thesis is about the circuit design and constructs the liquid level measurement device implementing ultrasonic wave. The method of measurement is “Transit Time Method”. This method is used for measuring the distance of objects or level by calculating the time value. The distance value of the design can be used as a means of controlling liquid levels of a tank (via feedback). According to the design the device will control the status of the valves by current signals. This method may also be applied efficiently in other applications, assembled to demonstrate the performance of the algorithm, is also described.