Abstract The project is aimed on the design and construction of a prototype device which allows the measurement, visualization and control of the temperature and relative humidity, and soil moisture inside a thermal chamber. This prototype consist mainly of two sensors, one of them to measure the temperature and humidity in the air, and the other one to measure the humidity of the soil; In addition, an Arduino development card, which be used to process the data and control the different measured Physical variables. A liquid crystal display (LCD) to display the measured data and the process it takes; In addition to other electronic devices that complement the processing and control in real time, the backup or monitoring of the thermal chamber through the days, the automatic turning on and off of a misting irrigation system and the automatic opening or closing of two windows used to let circulate oxygen inside the place.