A Sentry Pac Pro™ aeration controller doesn't replace your fans — it makes sure they're only running when it actually helps. That means: Getting the entire bin to a consistent moisture content, instead of hoping the grain evens out on its own.

Every hour your aeration fans run costs you something. Multiply that by a whole season of guesswork — running fans all night when the grain only needed 30 minutes, or forgetting to shut them off for three days straight — and it adds up to real money leaking out of your operation

We sat down on the front porch with a grain farmer who's run Sentry Pac since 1992. When we asked what he'd tell skeptics who question going without cables, he didn't hesitate: "Go ahead and spend tens of thousands of dollars on something you don't need."