The Grain Meter App has three primary functions; the first function is to allow university researchers and field investigators to use their smartphones to set up the sensor systems by wirelessly communicating with the data collection hub to set parameters such as the number of sensors, the farmers cellphone number, etc., the second function allows the field investigator to query a hub, that has been in the field collecting data, and retrieve and graph the historical information about the grain conditions that has been stored in the hub, the third function provides a direct link to a single sensor for obtaining current readings, this allows the sensor/phone combination to act as a wireless moisture/temp meter.