This circuit is superior to the general contact liquid level display circuit, and the accuracy will be higher. Because the ultrasonic wave has the characteristics that are not affected by the concentration of the measured liquid and the conductivity. Ultrasonic liquid level indicator circuit:
Temperature Sensor,Ambient Temperature Sensor,Air Temperature Sensor,Fuel Temperature Sensor
Xiaogan Yueneng Electronic Technology Co., Ltd. , https://www.xgsensor.com