The benefits of measuring water level with an ultrasonic sensor — and why your potential customers will care First, it's not intrusive. Thus there is no liquid to contact, which in theory means the sensor cannot be damaged (e.g. erosion by corrosive substances or clogging of sediment). On top of this, there is no need for regular maintenance thanks to the mechanical configuration – saving both time and money. The sensor provides instantaneous continuous level measurement even when the levels are changing rapidly, such as slow water hammer reactions up and down on a water surface. It is particularly useful when time scales are important and it matters most that a quicker response can be made — e.g. flood warning or operation of water levels at sewage treatment works. Ultrasonic sensors are all-weather capable and can even be used in extreme temperature conditions such as Arctic nights or oil refinery chimneys; the heavily contaminated areas where traditional sensor types have no ability to work at all. And that they are accurate and reliable no matter what conditions there are.