Very easy to drive (with a supplied battery), this thermometer can be used immediately. The temperature can be taken almost anywhere: oven, refrigerator, wall, window, pot, etc. A second measure prend1 (not least to remain precise) The screen can be "turned on" or off. Only regret: the documentation. It is almost useless, as it is simple. But still ... mine is only in German. An effort on French texts and measures in cm is a plus.