For this price, all OK

Because I want to control the temp / humidity in several rooms, I opted for this set of 4.
The delivery arrived undamaged and innherhalb the announced delivery time with me.
The settings are in spite of an English manual "self-explanatory" and easy to do.
The large display is also read on further distance very well.
Operation with the very reasonably priced to be acquired Tripple A battery makes use towards the more expensive button cells affordable.
Just a great thing!
Irritated me only (and above already have some other written) that the displayed values ​​corresponded not entirely true.
One can not readjust.
Well, at this price I will not complain.
I must take into account the difference in reading with these devices.
Thus, my equipment is used primarily to keep the min / max query the Hygro / Temp-development in mind.
So who can live at this reasonable price with the inaccuracy, is well served with this set.
Professional devices are indeed accurate, but much more expensive.
Yours sincerely.