The Sharp Weather Station is the perfect device for your home, office, school or workplace. The Sharp Weather Station with built in atomic clock has a built in receiver that automatically synchronizes itself with the WWVB radio broadcast by the US Government National Institute in For Collins, Colorado. The atomic clock will always be accurate to within one second. Read the indoor outdoor temperature and calendar and day of week display at a glance with easy to read full color display and easy to read icons. Easily set the alarm with the simple button controls on top of the clock. To operate, plug into a standard outlet. There is also battery back up in the event of a power outage.