Davis 7905L Wind Cups for Reliable Weather Sensing

The Davis 7905L is a genuine replacement set of large wind cups designed for use with Davis Vantage Pro2, Weather Monitor II, and Weather Wizard III anemometers manufactured in 2003 or later. These cups include a horizontal magnet, which is essential for accurate wind-speed sensing via the internal magnetic sensor. Each cup measures an outside diameter of 1.5 inches (38.1 mm), providing good sensitivity and responsiveness to wind. Made of durable polycarbonate, the wind cups are engineered to spin freely on the stainless-steel shaft, ensuring reliable wind-speed measurements. Installation involves simply sliding the cups onto the shaft and securing with the set screw using the included Allen key — no lubrication is needed, as greases can attract debris and impair performance.