TRACEABLE® Atomic Wall Clocks

Atomic Wall Clocks Automatically Adjust to DST

Always accurate Atomic Wall Clocks run on AA batteries for approximately two years before needing replacement. Both models are accurate to 1/10,000 of a second. A controlling radio signal from NIST in Boulder, Colorado automatically adjusts to precise time, daylight savings, leap year, and leap seconds (corrections for the earth's rotational "wobble"). Both come with a certificate of traceability to NISTstandards.
Digital Atomic Wall Clock displays time in a.m/p.m. or 24-hour time, plus month, date, day-of-the-week, and ambient temperature in Fahrenheit or Celsius (23° to 122°F and -5° to 50°C with 0.5 resolution). Large 2-1/4"H digits are visible from 20'. Measures 8-3/4"W x 9-3/4"H x 3/4"D. Weighs 1.1 lb. Includes wall mount, screw and two AA batteries.
Analog Atomic Wall Clock has a bright, highly visible second hand. Measures 12" dia. x 1-1/4"D. Weighs 1.4 lbs. Includes wall mount, screw and one AA battery.
Compliance: NIST traceable.