These clocks use a battery movement with a miniaturized radio receiver. The antenna picks up a radio signal from the NIST Atomic clock in Fort Collins, CO and adjusts several times a day. With good reception, they can give you worry-free, accurate, synchronized time at an economical price.
Why Choose Atomic Wall Clocks?
With good reception, radio controlled atomic wall clocks can give you worry-free, accurate, synchronized time at an economical price. They support four time zones and have a user-selectable auto DST ON/OFF switch.
All radio controlled clocks must receive the National Institute of Standards and Technology (NIST) signal near Ft. Collins, CO in order to function properly. Due to geographical location and/or building construction and interferences, certain locations may not receive the signal.
More information from NIST, station WWVB
