The temperature and humidity measuring thermohygrometer that exists at the point where the device is located has a 3 meter Cornwall probe to measure the temperature from some distant point. Measurement from -30 to 70 ºC, maximum and minimum temperatures registered. 3 meters length probe to measure the temperature of two remote areas of cultivation. Measuring from 25% to 90% moisture, records the maximum and minimum water content obtained in the cultivation. Works with batteries of 1.5 volts. It is usually placed at the base of the pot, away from fans, humidifiers and heaters, to give a measure as homogeneous as possible, without being altered by air flows or by the high temperature of the bulb.