Oregon Scientific Professional Wireless Weather Animated weather forecast includes sunny, partly cloudy, cloudy, rainy and snowy icons Supports indoor and up to 10 wireless outdoor temperature and humidity sensors (channel 1 is dedicated to included outdoor temperature and humidity sensor; channel Compatible with sensors using 3.0 protocol Measures and displays temperature, heat index, humidity, dew point, wind speed, wind direction, wind chill, UV index (with optional UV sensor), barometric pressure and daily/cumulative rainfall Current and 2 Weather alert alarms for hi/lo temperature, heat index, humidity, dew point, gust wind and high rain rate and UV index (with optional UV sensor) Displays past 24-hours of barometric pressure, accumulated rainfall and UV (with optional UV sensor) in b Includes 5-language software (English, German, Italian, Spanish and French) to store and view weather data on your PC via USB download. Long range transmission allows up to 100 meter (300 feet) between the main unit and remote sensors Full set mounti Base station uses 4 AA batteries or 6V AC adapter for continuous operations (included) Wind sensor uses 2 AA alkaline batteries (included) Rain sensor uses 2 AA alkaline batteries (included) Temperature/Humidity sensor uses 2 AAA alkaline batteries (