GRAIN GAUGEThe Grain Gauge is an easy to use, cost effective grain management solution. With easy installation, clear visibility, and a maintenance free design, the Grain Gauge is a dependable way to monitor the levels of grain in your bin. The Grain Gauge is installed from the outside of the bin. No bin entry. Simply drill a 1 inch hole and insert two screws. How it Works Once bin contents reach the height of the installed Grain Gauge on your bin, the indicator