I use a Davis Vantage Pro system as my main weather instrument. The external cluster has temp, humidity, rain fall, wind speed, wind direction and barometric pressure sensors.

That data is transfered via a wireless link to both a display console* in the master bedroom and a data logger in the obs. The data logger also has temp and humidity sensors. The data logger then feeds all the data to a PC in the family room. The weather software on that PC displays all the external and obs conditions including dew point in both locations.

*(The console in the master bedroom only displays external and internal (house) conditions. )

I also care about real-time rain, clouds and lightning and even though those inputs come from different devices (darkness meter, skycam, cloud sensor and lightning detector) I still consider them as part of the weather station.

All of these devices data are managed and displayed by the same dedicated PC that reads the main weather station data. That PC also has links to the obs PC and will influence the obs functions if needed when bad weather rolls in.

So far I have been very happy with the setup.