- Accurate to 1/10,000 of a second
- Automatically adjusts for daylight savings time
- Large digits are easy to read, even from far away
Clock receives a controlling radio signal from NIST's atomic clock in Colorado to maintain accuracy and automatically adjust for daylight savings time and leap seconds (earth rotation wobble corrections). Each clock comes with a Traceable Certificate, wall mount, screw and AA battery. Dimensions: 12" diameter, 2" deep.