Ordering, payment and immediate delivery - all perfect. Topp! The thermomenters hygrometer was problemos to install in our greenhouse is easy to use and also due to the just barely large enough display caption (esp. For In / Out and min / max) even read. It is very good that with this measuring tool Add., The outside temperature is measured continuously with, in particular the possibility to mention the stored Min / Max values (outside temperature sensor while integrated on a cable). That with the displayed different temperature values (in / out and Min / Max) has worked well. We hope that this (the well known, is very high in the greenhouse!) With the wet air display, unfortunately only for inside proved itself in the long term as well; if so, then it was a good buy.