Level sensors detect the level of liquids and other fluids and fluidized solids, including slurries, granular materials, and powders that exhibit an upper free surface.
Substances that flow become essentially horizontal in their containers (or other physical boundaries) because of gravity whereas most bulk solids pile at an angle of repose to a peak.
The substance to be measured can be inside a container or can be in its natural form
Level Switches are sensors with an electrical contact output at a specific liquid, powder or bulk level.
Capacitive, conductive, diaphragm, displacer, float, inductive, optical,paddle,vibrating rod, tilt, and tuning fork models are the different types of level switches available.
The level measurement can be either continuous or point values. Continuous level sensors measure level within a specified range and determine the exact amount of substance in a certain place, while point-level sensors only indicate whether the substance is above or below the sensing point.