Temperature display:
This works flawlessly
Humidity:
He is constant at 20% humidity. What defenitiv not true. (Have now another - indicates the very different values - which also vary, of course!)
The manufacturer recommends a remove and re-insert the battery (as indicated in the small description) Unfortunately, this does not work in this case. It remains at 20%.
Therefore no recommendation to buy from me - because the main activity of this article is unfortunately defective.
Many others have probably lucky - each 10 well caught loudly all reviews here as a schwazes sheep.