Ultrasonic sludge interface meter is using the reliable ultrasonic echo detection principle to calculate the ultrasonic wave return to the probe The height and thickness of the sludge layer can be calculated by calculating the time of the ultrasonic wave returning to the probe. Effectively grasp the sludge sedimentation characteristics and The ultrasonic mud-water interface meter uses the principle of reliable ultrasonic echo detection to calculate the height and thickness of the sludge layer. More about: The Difference Between Ultrasonic Depth Sensor And Ultrasonic Level Sensor