In 1998 I purchased a Davis Wireless Weather Monitor II and it has worked faithfully for 20 years. That is until the temp/humidity sensor started reading low. I have purchased a new Vantage Pro2 and hope someone can find some further use for this unit. It has the data logger serial/usb convertor, all manuals, and everything else that came with it in very usable condition. Make me an offer I can't refuse and pay for shipping and it's yours.