Development and evaluation of an electronic data acquisition system. 2014. 41p. Dissertation (Masters in Seed Science and Technology) - Graduate Program in Seed Science and Technology, Faculdade de Agronomia Eliseu Maciel, Universidade Federal de Pelotas, Pelotas, 2014.The present work was carried out with the objective of developing and evaluating an electronic system that allows the supervision and storage of data in a drying silo, aiming at a reliable and low cost system that allows its implementation in small or even large properties. A system of easy implementation and simple operation. The system is composed of microprocessed acquisition plates, which during the drying of the product perform temperature acquisition in three levels, top, center and base of the silos, as well as the relative humidity of the entrance and exit air, transmitting this information to a central office (computer), via Bluetooth where they are stored for later analysis.