GIANT-DIGITS Radio Atomic Traceable Clock

The atomic clock automatically sets the correct time and date from NIST's atomic clock in Colorado. Select from PST (Pacific Standard Time), MST (Mountain Standard Time), CST (Central Standard Time), and EST (Eastern Standard Time). Simultaneously displays relative humidity and ambient temperature. Signal reception includes four strength levels: RC synchronize process, weak signal quality, acceptable signal quality, and excellent signal quality.

• Giant-Digits™ 4-1/2 inches viewable from 200 feet.
• Features: radio signal from NIST’s Colorado atomic clock automatically sets the correct date/time; calendar displays month/date, day, leap year, alarm, plus temperature and humidity.
• Temperature range: 0 to 45°C (32 to 113°F); resolution: 0.1°; accuracy: ±1°C.
• Humidity range: 20 to 90% RH; resolution: 0.1°; accuracy: ±5% mid-range (±7% otherwise).
• The clock automatically adjusts for daylight saving, leap year.
• Desk stand and wall mount supplied.
• Simultaneously displays both temperature (F/C) and relative humidity.
• Shows date, 12/24 hour format, day.
• The resolution is 1 second.
• Accuracy is 1/10,000 of a second; Maintains better than 1-second accuracy for 25,000 years.
• Size: 17 x 11.3 x 1.3 inches, batteries supplied.

Traceable® Certificate
To assure accuracy, an individually serial-numbered Traceable Certificate is provided from ISO/IEC 17025:2017 (1750.01) calibration laboratory accredited by A2LA. It indicates traceability to standards provided by NIST (National Institute of Standards and Technology).