First tests with this thermometer yesterday, and I was surprised by the ease of use! Once lit simply put it to the desired location, and it sounds when the measurement is complete. But beware: manual strongly discourages taking a temperature under the armpit because too far from the actual temperature. Other possible uses: see oral or rectal. Level finishing and strength, it seems to me very well, especially for the price. The temperature displayed seems correct, according to my tests, but I still prefer in-ear models.