The name of this item seems to have been lost in translation. It doesn't control anything, it's just a thermometer (and hygrometer).
As the product photo shows, the display is large and unfussy, showing current, min and max for both temperature and relative humidity. Easy to read across a room. There's a switch on the back to switch between celsius (centigrade) and Fahrenheit. Relative humidity is displayed as a percentage value. You can choose the time of day at which the min and max readings are reset. You can also reset the min/max readings by holding down the button on the front for a few seconds.
The stand on the back looks like it would snap off fairly easily. It can be hung on a wall instead of using the stand. The readings are stable and precise. I can't really comment on accuracy, but the readings seem reasonable.
In contrast to the poorly translated name and product description, the English in the instruction leaflet is clear, concise, and complete.
It's not an object of outstanding beauty, but has a feel of unfussy German engineering about it (though it's made in China, of course). Inside the box, it came wrapped up in thin brown paper, which I assume is the result of green legislation, but somehow communicates the feeling of old-fashioned engineering values to me :-)