Special FeaturesDenver WS-540 Weather Station with a quick-read color screen, providing information on indoor and outdoor temperature, displaying humidity in both locations, and capable of detecting drafts. A thermometer, hygrometer, and clock in one! It comes with 1 outdoor sensor. You can easily switch between this information using the touchscreen buttons. It features a radio-controlled clock with DCF, a date display, moon phase, and an alarm function. Technical SpecificationsWeather station with radio-controlled clock (with DCF) Dimensions: 15.9 x 2.2 x 11 cm Color display Time, date, and alarm function 12/24 hour, Celsius / Fahrenheit selectable Moon phase display Indoor and outdoor temperature Indoor and outdoor humidity (range: 20 to 90 percent) Draft sensor warns of open windows Icons to display comfort index Batteries required: 2 X AA (sensor) (not included) Main unit runs on included AC/DC adapter Touchscreen for switching between info pages Supplied with 1 outdoor sensor