Crystal weather station featuring 12/24 hour, date and weekday display, automatic snooze function. 4 weather icons laser engraved in 3D inside the crystal block (sun-red light, sun with cloud-green light, cloud-white light and rain-blue light). Temperature display in Celcius degrees and Fahrenheit degrees. Indoor/outdoor thermometer and indoor/outdoor hygrometer. Powered by AC/DC, DC power adaptor included. Includes three AAA batteries for the sensor. Temperature ranges between -20 C (-4 F) and 50 C (122 F).