During the winter time, when weather contition lead to unfavorable road conditions, salt is needed. This salt is stored in silos at different locations. The silos are built in a way, to allow trucks to drive below the silos and load the salt. Since various scatter trucks take salt autonomously, it is essential to always know the filling level of each individual silo, in order to replenisch in a good time. With SiloLevel 1, combined with telecomunication, silo filling levels of individual silos can be measured from a PC at any office location.