This paper present the results of the experimental design performed to enclosure surfaces temperature measurement useful to HVAC/R applications (Heating, Ventilation, air conditioning and refrigeration). In this type of applications the temperature represents one of the main parameters of experimental validation thermal model of a enclosure with a wall and window exposed to external ambient, with which to evaluate its global operation. Therefore requires measurement systems that guarantee some certainty degree at the results, to improve its efficiency and operation condition.