The diploma thesis deals with the comparison of the properties of selected types of temperature meters when measuring the temperature of the cooling elements. The theoretical part describes concepts such as temperature, temperature scales, basic rules for temperature measurement and individual principles of contact and non-contact temperature meters. The main part of the thesis describes the connection of thermocouples with compatible electronics and the Arduino microcontroller and the non-contact temperature meters used. The chillers used in the computing technique will be used as cooling elements. The heat-cooling source is Peltier's cell connected to a metal cooler. The result of the work is compared to the individual sensors according to their accuracy, suitability for use, time delay and their total price.