The present work describes the design and manufacture of a prototype (currently in use) of an intelligent

sensor for the tracking and monitoring of blood temperature and of hemoderivatives to be used in

transfusions, over the entire process. Furthermore, this system provides information in real time of the

blood reserves organized according to their characteristics (Rh, type, date, etc.). The device is based on

RFID (Radio Frequency IDentification), this being the method that best suits the needs of these types of

health materials.