The adjustable top mount rotary from Bin Master has an adjustable coupling which can be moved up and down the length of the shaft. The shaft is able to be adjusted from 6 to 72 in., enabling the rotary to deal with varying levels of material in the silo or bin. The indicator can be used with almost all materials when combined with a paddle that is compatible, and is installed atop the bin. When material levels are altered during production or when the materials are adjusted in a bin permanently, fluxes in the levels are observed. Managers can easily make changes without the need to enter the bin or replace the device due to the unit being fitted with a configurable coupling. A large selection of paddles is offered by BinMaster which are ideal for use with all materials and all have compatibility with the adjustable rotary level indicator.