I agree with RossW,
I have a lower market anenometer (Lacrosse, part of a full wireless package, bought at Costco a few years back for ~ 90$). I like the unit for everything but wind speed. Honestly it does that fairly well, slow updates though for a normal user (not one with a wind turbine). I do not use it for any calculations or data storage
I have a home made logging system, transmits to the house , numbers stored in a database from numerous ammeters and recorded voltage. (I don't have a wind speed portion)
My next step would be to have an anenometer that jived with my system, basically if I wantend to know peak production and wind speed, I'd have both. Means a system that samples wind speed and anything else (turbine amperage , voltage) at as close to real time as possible (under a sec) in order to get a feel for what happened. (In my case I would just add the anenometer reads to the existing system).
Averaging could be interesting, but I would want peak production, and an acculumation (not average) of the W/hr produced.
just me being goofy,
Rover