La Crosse Technology Weather Channel WS-9031TWC Projection Weather Station Radio-controlled projection clock and weather station from The Weather Channel Projector flashes the time or outdoor temperature red digits on flat surfaces up to 6 feet away; LCD screen display Outdoor TX4U sensor communicates temperature and humidity data to the base from up to 80 feet at a 433.92MHz frequency Additional features include barometric pressure, perpetual calendar, alarm, and forecasts; 5 AA batteries needed for operation Unit measures 7-1/4 by 4-1/4 by 2-1/4 inches and weighs 1-4/5 pounds upon shipping; limited 1-year warranty