Am satisfied. 83

The 5 stations are spread over 3 floors (basement, ground and first floor) and operate smoothly.
The base is located on the upper floor and the data collecting PC on the ground floor.

Collected the data using the included software.

Software:
There is the software only for Windows, I have Virtual Box installed me (for free from Oracle) on the Mac, where a virtual Windows uploaded.
The USB flash drive plugged into the Mac, enabled in the virtual machine and off you go.
The data of the measuring points are sent after pressing the USB button on the base station (upstairs) on my (virtual) PC on the ground floor.

A Tip- the base sends to the manual retrieval and updates the USB button must be pressed again without.
Condition is that is not finished at the PC the software and of course, the remains of the PC within reach.
By default, every 15 minutes new data versand- the interval can be changed using the software.

Anyone who sits in the office, can Dialup in his home PC, the "Weather" Retrieving and using switchable via PC socket (eg AVM FRITZ! DECT 200 for users of particular Fritz boxes, RWE SmartHome etc.) to enable heating or dehumidifier.

Hardware:
As has been reported here, which is the screw for the battery compartment susceptible to rust at elevated humidity (many thanks!), I have the screw for my in unheated basement (currently 11 degrees with 65% humidity) used station with a small piece of adhesive Powerbond taped (which is an outdoor assembly line, which can also be detached without residue). This should keep moisture. Other tape but should also work. :-)
The only thing I can complain about, would be the pedestal of "external" measuring stations. On a flat surface can be the station paddles.

How sensitively and fix the sensors, it can detect.
Especially with freshly washed Händen- who since the sensors comes too close, temporarily increase the display values. :-)

For accuracy:
the humidity and temperature display my vote based on my analogue weather station rather agree = +/- 1-2%.
The hair hygrometer weather station I have recently even calibrated.

All in all I'm after four weeks with the purchased equipment satisfied.