My company INENSUS produces compact wind monitoring sytems for small wind turbine site assessment. We call it aeolog. It consists of one or two anemometers (Thies), a wind vane, temperature sensor, if required solar sensor (for hybrid system design). The data logger running on a battery stores 10 min averages, max., min., etc. on an SD card and evaluates the data (weibull distribution, averages, wind speed distribution over wind direction) which can be looked up at the display of the data logger. Everything is readily connected to a 10 or 15 m tower (incl. guy wires, base plate, etc.) and goes into a wooden box to be sent cost effectively by parcel service and installed within approx. 30 min. Prices between 600 and 1900 € plus VAT and shipping. Hiring option inside EU. Just logger and anemometer available, too. For more information have a look at www.inensus.com
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Nico