Level indicators are devices used in the measurement of level of fluids at various industrial applications. These devices are used to determine the level of liquid in tank, drums, pressure vessels etc. There are many level indicators to suit the needs of different applications, normally, and fluids are used in many forms in highly commercial industries. Without proper devices it will be very difficult to find the quantity and level of fluid stored. Also, in certain situations where the nature of fluid is dangerous or the place in which the liquid is stored is of such a nature that it is manually impossible to find the level, then the level indicators are of upmost importance. Depending on the type of application used, the type of level indicator should be selected, for example, in the process industry.
There are many different type of level indicators each with its own application.