The measurement of body temperature is essential for recognizing a disease and for domestic observation of the disease process. The measurement with the digital Omron Flex fever thermometer in the mouth or under the arm could not be easier. The battery (button cell) is already installed and the thermometer in a working condition. A simple push of a button is enough to start the temperature measurement. After a few seconds a beep sounds and the body temperature can be read. Higher accuracy of measurement is achieved with a longer stay for 2-3 minutes the thermometer. The use of the clinical thermometer is especially pleasant by the flexible and silicone soft tip. A real plus is the hard plastic protective cover which facilitates the safe transport and secure storage. A favorable and recommended thermometer.