Abstract: A system of grain drying in a specially constructed bin which involves electronic readings of multiple parameters and control of the operation of high volume blowers by a programable control system which reacts to the parameters. Sensors read ambient air humidity and temperature and grain temperature at various locations in the grain bin. These readings are combined with grain moisture readings secured through sampling ports to control the air flow based on a preset goal for moisture level of the grain. Various parameters are also displayed for operator information.