Alter-Type Wind Screens

Alter-Type Rain Gauge Wind Screens minimize the formation of strong updrafts that can distort the trajectories of precipitation particles falling toward a gauge. The screen also generates turbulent air motions over the gauge orifice to break up streamlines and thus improve the catch. Use of a wind screen is recommended with all precipitation gauges located in windy areas.

The screen consists of free-swinging metal leaves, evenly spaced around a 48" or 64" diameter. Each leaf is fabricated from 20-gauge galvanized sheet metal. The four leaf quadrants are supported by legs that are threaded at the lower end, making is easy to extend the legs if needed. One of the quadrants swings out to permit easy access to the rain gauge.

• Model 260-952
• • 48" Diameter, for use with a single rain gauge
  • 24" legs
• Model 260-953
• • 48" Diameter, for use with a single rain gauge
  • 36" legs (24" standard leg with coupler and 3/4" NPT x 12" extension)
• Model 260-952-64
• • 64" Diameter, for use with up to two rain gauges
  • 24" Legs