Very good device a priori, very easy to use (with two modes to raise the humidity in the wood and in the walls) and solid appearance (plastic and pin machine stamped Made in Germany), although this request be confirmed in time, little risk of accidental discharge (3 sec. to switch support, same to turn it off, and auto-off after 3 min) The accuracy is good, the given rates are not wacky and remain stable, there was even more or less rapid beeps that tell you if the wood is more or less humid, in short, the price / quality ratio is advantageous.