Timex TX6140 Wireless Electronic Thermometer with Hygrometer, Barometer, Bargraph, Weather Icons, Clock, and Calendar Wireless electronic thermometer with indoor/outdoor temperature, humidity, and weather forecast options Synchronizes with official U.S. Atomic Clock for precise time accuracy; displays date and day of week Indoor temperature range of 32 to 122 degrees F; outdoor temperature range of -4 to 140 degrees F Measures relative humidity from 1 to 99 percent; 5 kinetic weather forecast icons and pressure history graph Main unit measures 3.75 x 7.62 x 1.38 inches (W x H x D); sensor measures 2.75 x 3.94 x 0.94 inches; 1-year warranty