Process sensors are used anywhere liquids and gases are involved in industrial applications. They record and monitor process data. Process sensors can be employed in a very broad range of applications. However, they must be designed exactly according to the requirements of the medium to be measured, the pressures and temperatures involved in the application. Various process sensors are specially designed for monitoring process values, they measure the relevant process values and transmit them to the control unit. Process sensors are used in the food industry, chemical industry, hydraulic applications and wastewater technology, among others.