With this comprehensive Cresta weather station set BAR818, including an outdoor temperature and humidity sensor, anemometer and precipitation sensor, you can get professional weather measurements and forecasts at home. The display shows you the calendar, phases of the moon, weather forecast (in easily recognisable icons as well as in text), indoor and outdoor temperature and humidity, wind speed and direction, wind chill, air pressure (including a saved history for the last 24 hours) and precipitation (with a minimum/maximum memory). The clock has an alarm function and time zones (including sunset and sunrise) for 132 pre-programmed world cities. The weather station can store up to 6000 weather records. This set is powered by 4 AA batteries for the indoor unit, 2 AA batteries for the outdoor temperature sensor, 2 AA batteries for the outdoor anemometer and 2 AA batteries for the outdoor precipitation sensor, which are all included in delivery.