A level sensor is an industrial measurement device used to detect, measure, and monitor the level of liquids, powders, granules, and bulk materials in tanks, vessels, silos, hoppers, and process systems. Reliable level measurement supports automated filling, emptying, alarm management, batching, and inventory control across industrial facilities.

Level sensors are available for applications using ultrasonic, radar, capacitive, conductive, float, vibrating fork, hydrostatic, and other measurement technologies. The right solution depends on the material, tank geometry, temperature, pressure, foam, vapour, density, mounting position, and required measurement range.