Banner Engineering Ultrasonic Sensors use sound waves to detect targets and measure distance. Because ultrasonic sensing is largely independent of target color and optical surface characteristics, it is well suited for transparent objects, liquids, irregular surfaces and targets in dirty environments. The product range includes models with different minimum and maximum sensing distances, discrete and analog output options, temperature compensation and high environmental protection ratings for demanding applications. Typical uses include tank level measurement, material presence detection, fill-level monitoring, distance measurement and general machine automation.