LFF LWC100/LWC150 Atomic Clock

Precision sync with NIST, 15" LCD, wireless sensor. Battery-powered perfection—ideal gift!

颜色: Black

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Vendor: LFF
SKU: LWC-100
Availability : In Stock Pre order Out of stock
Tags: Clock

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Total price:$219.97 $199.97

Atomic Clock Indoor/Outdoor with Humidity and Temperature, Large Display, Calendar, Day of the Week, Wireless Outdoor Sensor

What Should I Pay Attention to When Using WWVB Features?

  • Please select the correct time zone before RCC search.
  • Make sure your location can successfully receive the time signal, place the clock in an open place or near a window with good signal.
  • Please place the device more than 3.28 feet away from sources of interference such as TVs, computer, microwave, radio, etc.
  • Closed areas such as airports, basement, factories and areas, in which reinforced concrete was used in the walls, are not recommended.
  • If the RCC time signal is not received successfully and the time automatic setting fails, you can also cancel the radio reception and set the time manually.
  • Sometimes in extreme weather or weak signal or other disturbances appear nearby, the clock may also appear to receive the wrong time signal instruction.For more information, please refer to the WWVB web page of NIST.
  • After 48 hours, if the clock hasn't received the signal, or if you have any queries, problems or do not understand any parts of these instructions, please write to us.

How do atomic clocks work?

Atomic clock is an extremely accurate timepiece. Most atomic clocks in north america use WWVB's transmissions to set the correct time automatically. They can receive the time signal transmitted by the national institute of standards and technology (NIST). The NIST broadcasts the time signal (WWVB,60KHz) continuously from Fort Collins, Colorado. It is expected that the signal can reach a distance of over 2,000 miles from the transmitter. The atomic clock has a built-in RCC receiver for automatic synchronization of WWVB radio broadcasts. Atomic clocks will always be accurate to within one second when receiving daily WWVB updates.


With beautiful packaging, good design and a variety of great features, this digital wall clock is the perfect gift for parents, friends, heavy sleepers or light sleepers. The perfect gift for Thanksgiving, Christmas, Birthdays and more.

  1. Clock size: 14.2''×9.4''×1.2''.
  2. Automatically update daylight saving time (on/off option).
  3. Atomic clock with big numbers, making it easier for family members to know the time, date,week, indoor / outdoor temperature and humidity.
  4. 8 time zones to choose from: EST, CST, MST, PST, AKT, HST, AST,NST.
  5. The outdoor sensor can wirelessly receive the transmission signal within a range of 328 feet.
  6. The large atomic clock can be used as a atomic wall clock or as a desktop atomic clock.
  7. Battery powered: Clock 4 AA batteries (not included), Sensor 2 AAA batteries (not included).

Never Needs Setting

Digital atomic wall clock automatically synchronizes itself with the WWVB radio broadcast by the US every day. Government's national Institute of standards and technology (NIST) in fort collins, colorado.It automatically enters the RCC search every midnight at 12:00, 1:00, 2:00, and the digital wall clock automatically updates the time, week, calendar.

Note: Please select the correct time zone before RCC search.

Battery Powered (No Backlight)

The battery atomic wall clock is supported by 4xAA battery and outdoor sensor is supported by 2xAAA battery. (Batteries Not Included)

Atomic Clock for Wall or Desk

It can be easily hung on a wall or placed on a tabletop using the sturdy fold-out stand. LCD large display and large digits of the clock make this beautiful clock ideal for home, office, school, hospital, etc.

The outdoor temperature and humidity are displayed by the outdoor sensor, which collects the surrounding outdoor temperature and humidity information through the flowing air and transmits it to the clock. To ensure accurate temperature and humidity sensing, place the outdoor sensor out of direct sunlight or rain, and away from any heat sources or vents. The sensor can wirelessly receive the transmitted signal within a range of 330 feet, so that the family can know the indoor/outdoor temperature and humidity at any time.

Manual Instruction
Download pdf.