A capacitance level meter uses the principle of capacitance to measure the level of liquids or solids in tanks or vessels. It works by measuring the change in capacitance between two conductive surfaces, one being the tank wall and the other a probe inside the tank. As the material level changes, the dielectric properties between the surfaces change, altering the capacitance, which is then translated into a level reading.

Application:
Capacitance level meters are used for various applications, including point level detection and continuous level measurement in liquids, powders, and granules. They are also suitable for measuring the interface between two immiscible liquids.