I bought it for my son who, two years old, started to refuse anal temperature measurement. The thermometer works well, no complaints, but be aware that it always displays some difference compared to a decimal annal temp taken, more precise. Moreover, we must still push it deep enough into the ear, following well internal curves of the ear, etc., to take the temperature. A so forget if the idea is to use it to take the temperature of newborns without their wake (such as thermometers where one touches the forehead).