Chaney 50308 Atomix Balmoral 18" Metal Wall Clock w Thermometer Using the same technology NASA employs to tell time, this Atomix clocks wirelessly synchronizes with the National Institute of Standards and Technology's atomic clock in Boulder, Colorado. In addition to daily confirming the time, this clocks automatically adjusts for Daylight Saving Time and runs up to two years on a single AA battery. This clock features an aged metal case as well as thermometer and hygrometer. It also has an arabic numeral dial with black graphics and hands and a glass lens. This clock is suitable for outdoor use in a protected area.