【Upgraded Big Screen Display】- Experience the luxury of a 5.5" High Resolution Digital Alarm Clock that spells out the time, date, and temperature clearly. The illuminated LED digits ensure ...

Monitors indoor & wireless outdoor temperature (F/C) with trend arrows Atomic self set time and date with automatic daylight saving time resets (optional on/off) Moon phase icons 12 Hour time ...

The satellites that make the GPS in your car and smartphone work consist of many atomic clocks. About 400 such atomic clocks ...