Answer 01
I believe you have to have the monitor with it. It has the antenna to receive wifi from the actual weather station.
Answer 02
As far as I know, there is no way for a PC to communicate directly with one of these WX stations. Further, connecting a PC to one of the _consoles_ requires the purchase of an adaptor from Davis. Davis sells the consoles separately specifically to allow monitoring one station from two (nearby) locations.
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