I was thinking of putting one up in roughly the position of the hub height and measuring the windspeed over the year. There will be no power on site so it will have to run on batteries and I will have to be able to download the data to my Laptop once a week or once a month.

Any body know where I could get one or have used one, not much luck so far searching on the net, I can find the equipment but no prices or stores selling it
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CJL