Replacement wind cups, large with vertical magnet, for anemometers 2002 and earlier. Outside cup diameter: 1.5" / 38.1 mm.
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 #07903S small wind cups.
For anemometers sold after 2002, see #07905L Large Wind Cups.
