A high temperature is a reaction to disease specific stimuli. The body responds by increasing its temperature to assist its defences against specific disease mechanisms. Yet, fluctuations in the body temperature can also be caused by reasons other than those relating to disease. The precise measurement of the body temperature is of the greatest medical significance. It permits illnesses to be diagnosed at an early stage, their course to be monitored, and the efficiency of prescribed therapies to be assessed. Microlife Thermometers are quality products incorporating the latest technology and tested in accordance with international standards. Maximum precision and accuracy of measurement are achieved through the use of microcomputer technology. The instruments perform a self-test every time they are switched on to always guarantee the specified accuracy of measurements. Microlife thermometers have been tested for biocompatibility in order to guarantee the absolute harmless application of the thermometers for the user. All the materials of applied parts in Microlife thermometers are biocompatible in compliance with ISO10993.