A fully sealed, weather-resistant case and large, easy-to-read numerals on its face make this clock ideal for high-humidity, outdoor environments. As it maintains radio contact and automatically synchronizes with the National Bureau of Standards'...
A fully sealed, weather-resistant case and large, easy-to-read numerals on its face make this clock ideal for high-humidity, outdoor environments. As it maintains radio contact and automatically synchronizes with the National Bureau of Standards'...