You depend on the accuracy of your seed sensors for measuring population, seed spacing, skips and doubles. But optical sensors have four big problems: Dust looks just like seeds, Doubles look like singles, Dust coats the eyes, They mount at the middle of the seed tube. WaveVision eliminates these problems and provides good clean information to your monitor. It sees mass, not shape. So doubles look like doubles. The radio waves also see through dust. And that means we can mount the seed sensor at the bottom of the seed tube.