This weather station has many unique features, such as radio-controlled, 12/24-hr time with time zone setting and manual setting option; daylight savings time; calendar display; and alarm setting with snooze function. The display also shows the sunrise, sunset, and sunlight duration of a selected world city, and moonrise and moonset along with 12 moon phases throughout the month. Also features indoor temperature display with min/max recordings, outdoor temperature with min/max recordings, alarm, temperature display in degrees Celsius or Fahrenheit, indoor relative humidity display with min/max recordings, and smiling or sad face for comfort level reading. Includes manual reset of all min/max recordings, relative or absolute air pressure displayed in hPa or in Hg, graphical display of air pressure history for the last 30 hours, air pressure tendency display for the last 2 hours, weather tendency indicator, and 3 weather icons for weather forecasting and storm warning. Outdoor transmitter will transmit up to 80 ft. Can take up to 3 outdoor transmitters. Weather station size, 7 1/2 × 7/8 × 10 1/4" H. Therom-hygro transmitter size, 2 1/4 × 6 7/8 × 4 7/8" H.