Dry Processing
www.foodengineeringmag.com/articles/94069-level-sensor

Level sensor
June 24, 2015
The BinMaster SmartBob HM weight-and-cable-based level sensor for side mounting can be used when installing a sensor on top of the bin is not possible. The sensor works like an automated tape measure with measurements taken at pre-determined time intervals at a location directly below the probe to continuously monitor the internal inventory.
BinMaster; 800-278-4241; www.binmaster.com