BinMaster's diaphragm switch is an affordable, reliable and simple point level sensor for bulk solids. Mounted near the top of the silo, it activates an alert when grain reaches the level of the switch mounted on the side of the bin, preventing overfilling. You can also mount a diaphragm switch as a low level indicator, as an alert when it's time to run the bin sweep. Read about the diaphragm switch and how you can order it online in time for harvest.