How deep are your pockets?
Davis Vantage Pro 2 stations are the best of the consumer grade weather stations, and seem to have the best support. Wired is more reliable and less expensive than wireless. If you want solar and UV sensors, order the system with them (Vantage Pro 2 Plus). They are a lot more expensive to add later.
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Hey, you said "best"...
You really should right up a cost estimate for that list and sticky it somewhere.
