Sharp Flechazo-0401 Atomic Digital Wall Clock

The Sharp Flechazo-0401 Atomic Digital Wall Clock takes the guesswork out of timekeeping with its built-in WWVB receiver, which automatically synchronizes with the atomic clock signal broadcast by the National Institute of Standards and Technology in Fort Collins, Colorado. Once set up, the clock receives daily updates to maintain accuracy within one second — no manual adjustment needed for daylight saving time changes or drift. The jumbo 4-inch tall LCD numerals make the time readable from well across a room, and the display packs in additional useful data: indoor temperature, outdoor temperature, full calendar date, and day of the week.

A wireless outdoor temperature sensor is included in the box and can be placed anywhere within 100 feet of the main unit — on a porch, patio, or window ledge — with no wiring to run. The main clock unit is powered by 4 AA batteries while the sensor uses 2 AAA batteries, keeping the setup completely cord-free. An integrated stand on the back gives you the flexibility to use it as a desk clock or mount it on a wall, making it a practical fit for kitchens, offices, workshops, or anywhere you want a reliable, glanceable time and temperature display.