|  | Davis Instruments 7903L Large Wind Cups for Anemometers 2002 and beforeReplacement wind cups, large with vertical magnet, for anemometers 2002 and earlier. Large cups are the standard size shipped with the anemometer. These large cups are more sensitive to wind and breezes than small wind cups. If you live in an area where hurricanes and other high-wind storms may occur, you should consider using small wind cups.
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