We have this thermometer ordered some time ago for our daughter to save the measurement in the conventional way ... At first we measured for safety in addition to the old thermometer and had only minimal deviations (0.1 degrees). The forehead thermometer is of course much faster and not unpleasant for the child, so we only use the forehead thermometer. Even with 2-3 measurements in direct succession we had no differences, which amounted to more than 0.1 degrees (and we always measure at least 2x, since our daughter always want to measure yourself). The only criticism could be the volume of the beeping, but somehow we should remember, too, when the thermometer ready and when it's finished ... Therefore, definitely 5 star and a strong buy recommendation.