Nielsen Kellerman Inc. - Manufacturer of the Kestrel Wind/Weather meters. Measures wind speed, temperature, and humidity. Speranza Weather Service - Offers weather instruments, thermometers, wireless weather stations, rain gauges, and barometers. InstroMet - Weather stations, monitors, and sensors. Red Oaks Trading - Offers a selection of altimeters, compasses, anemometers, sonar depth sounders. Wind and Weather - Weather instruments, stations, and weather-themed home decor. Weather Cycler - Chart and instructional material to help weather educators, enthusiasts, aviators and sailors interpret weather forecasts. The Weather Store - Offers a wide variety of scientific and collectible weather equipment. Stormwise - Lightning detectors, VLF receivers, barometers, weather stations. Weather Shop - Weather stations and instruments, tide clocks, books and videos. Prodata - Offers Davis weather stations, gives information about setup and use. Maximum Instruments - Home and hobbyist instruments and stations. Loh Inc. - Offers a graduated polycarbonate gauge for manual precipitation measurement. Weatherhawk - Offers a weather station for home or light industrial use, wireless or wired, to be connected to a computer.