Install this weather station in your backyard and share the current conditions at your home with balloonists from around the world.
From the manufacturer's website.
The WS-2902 features a dramatic redesign of the LCD display for the very popular WS-2902B. Ambient Weather's newest Personal Wifi Weather Station allows you to monitor your home and backyard weather conditions with the brilliant, easy-to-read LCD color display. Monitor indoor and outdoor conditions, including wind speed, wind direction, rainfall, UV, solar radiation, barometric pressure, indoor/outdoor temperature (F and C), indoor/outdoor humidity, dew point, heat index, wind chill, and more. Connect your station to the Ambient Weather Network and join an interactive weather community with the ability to customize your online dashboard and share weather data socially, all for free. The Ambient Weather Exclusive includes one WH31E Wireless Temperature and Humidity Sensor that supports up to 8 channels to integrate with your Ambient weather station.