ALANO WWVB 60kHz NIST Radio Controlled Clock Module, 30dB High Gain Atomic Clock Receiver Modules with LCD Display, 100mm Antenna 1.2 to 5V Operating Voltage for Radio/Radio Alarm Clock/Timer: Buy Online at
Atomic clock via a DIP » JeeLabs
Atomic Clock - SPX-14830 - SparkFun Electronics
Commercial space Chip Scale Atomic Clock module is radiation tolerant
WWVB 60kHz NIST Radio Controlled Clock Modules, 30dB High Gain Atomic Clock Receiver Module, 100mm Antenna 1.2 to 5V Operating Voltage for Radio/Radio Alarm Clock/Timer (5 PCS) | Walmart Canada
Atomic Clock - SPX-14830 - SparkFun Electronics
Chip-Scale Atomic Clock Mounts on a PCB, Delivers Greatly Enhanced Performance | Microwaves & RF