You can mix the sensors from Honeywell, Mebus, Irox, Cresta, NEXUS ...
If you have one station from Cresta and one from Irox -> then you can store a sensor set (wind, rain, uv) as a backup.
And using the temp/hum sensor from the second station as sensor 2...5.
Would an Irox UV Sensor also work on a nexus? I know that the nexus has cannot display UV, but perhapt the identical hardware stores the measurements and they can be read by WSWIN then?