DuraTime HP 10 Digit, 1.2" Multi-Color Dot Matrix Digital Clock!
10 Digit Multi-Color Digital Clock
Accurate to 2 ppb (Parts Per Billion) or 1 second over 20 years
User changeable multi-color LEDs that allow you to switch between red, blue, green, yellow, magenta, cyan or white colors
Model # HPAC121001
DuraTime HP High Precision Factory Synchronized Clocks feature a OCXO Oscillator. The clocks are synchronized to the Atomic Clock at the BRG Factory. Because the OCXO is so accurate, you will not need to adjust the time for 20 years.