Traceable Digital Clock has 3-5/8 inch-high big digits for visibility from 200 feet. Features: radio signal from NIST’s Colorado atomic clock automatically sets correct time; weather forecast indicators, alarm, plus temperature and humidity, and remote sensor. Temperature range: 0 to 45°C (32 to 113°F); resolution: 0.1°; accuracy: ±1°C. Accuracy is 1/10,000 of a second. Radio signal from NIST in Colorado automatically adjusts clock to precise time, daylight savings, leap year, and leap seconds (earth rotation wobble corrections). Large digits are 3-5/8 inches high for viewing from 25 feet.
An individually-numbered Traceable Certificate provided with each unit, assures accuracy from our ISO/IEC 17025:2017 (1750.01) calibration laboratory accredited by A2LA. Supplied with Traceable Certificate, mount, and batteries.