Specifically studied to monitor solid products (powders, granules, flakes) filling level, the indicators are selected based on product physical nature and bulk density.

Paddle type, vibration type and capacitive type level indicators are ON/OFF type.

For continuous monitoring “ILS” impact indicators are used with a specific sensor descending into the silo and going back to the initial position after touching product surface.

Its microprocessor, by calculating tracked distance, gives back level indication through a 4÷20 mA signal