Track your outdoor weather. Professional weather center displays temperature, wind, and pressure readings with a-12 hour historical graph. Wireless thermo-hygro sensor transmits temperature, wind information within seconds to the base unit, and has a transmission range of 330 ft. Weather center stores up to 140 historical sets of weather data recorded within 3-hour intervals and storm warning alarm to warn you of bad weather coming. Packed full of features: wind speed & gust, wind chill (°F/°C) & dew point with MIN/MAX records, MIN/MAX values for outdoor temperature & humidity, indoor temperature, barometric pressure and weather forecast with icons and tendency arrows. Manual set 12/24 hour time display with calendar and alarms. Wireless technology packed with convenience.