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LFF

Atomic Clock/Never Needs Setting, Battery Operated, Atomic Wall Clock with Indoor/Outdoor Temperature & Humidity, Wireless Outdoor Sensor, 15" Digital Wall Clock with 4.5" Numbers Easy-to-Read

  • Based on 336 reviews
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Availability: Only 10 left in stock, order soon!
Fulfilled by Amazon

Arrives Thursday, Jan 8
Order within 11 hours and 2 minutes
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Color: Black


Features

  • ACCURATE ATOMIC CLOCK: The atomic clock has a built-in receiver that automatically synchronizes itself with the WWVB radio broadcast by the US Governments National Institute (NIST) in Fort Collins, Colorado. Digital wall clock adjusts time & calendar to atomic signal automatically, and could count seconds accurately. (Note: no backlight display)
  • 15" LCD HIGH DEFINITION DISPLAY: The Atomic Clock has a 9.4-inch tall upgraded LCD high-definition display with large numbers that are easy to read. It can display the calendar, time (12/24H), day of the week, alarm clock, indoor / outdoor temperature (C/F) and humidity at the same time, the clock can be used as a wall clock or a desk clock, friendly to the elderly or visually impaired. 8 time zones are available including EST, CST, MST, PST, AKT, HST, AST, NST.
  • WIRELESS OUTDOOR SENSOR: The clock has built-in high-quality indoor temperature and humidity sensors (included) that transmit accurate measurements of outdoor temperature and humidity in F or C to the atomic wall clock. The sensor transmission range is up to 328 feet (100 meters), and the outdoor waterproof rating is IPX4, splash-proof. For the sensor, place the device in an open area away from direct rain, and you can easily understand the temperature and humidity both indoors and outdoors.
  • OPERATED BATTERY: Atomic clock indoor outdoor thermometer is powered by 4 AA batteries (not included), the wireless outdoor sensor is powered by 2 AAA batteries (not included). It has simple manual setting buttons, easy to set, easy to read, easy to use, They are excellent clocks for seniors, and functional and stylish design makes it a perfect decor to kitchen, living room, bedroom, library, and office. (Note: no backlight display)
  • PERFECT GIFT: Large digital wall clock has 3 hanging holes and a bracket, it can not only be placed on the desktop but also can be hung on the wall. Practical and stylish modern design, perfect gift for parents, friends on birthday, new year, thanksgiving, christmas and anniversaries. If there is any quality problem, please contact us in time. (Get: 1Atomic Clock; 1Outdoor Sensor; 1Manual)
  • Note: Temperature below -4F require Lithium batteries in the outdoor sensor.

Brand: LFF


Color: Black


Display Type: Digital


Style: Classic


Special Feature: Large Display, Multiple Time Zone, Temperature Display, Atomic, Calendar Display


Product Dimensions: 14.2"W x 9.4"H


Power Source: Battery Powered


Room Type: Kitchen, Living Room, Bedroom, Library, Office


Shape: Rectangular


Indoor/Outdoor Usage: Indoor


Brand: LFF


Color: Black


Display Type: Digital


Style: Classic


Special Feature: Large Display, Multiple Time Zone, Temperature Display, Atomic, Calendar Display


Product Dimensions: 14.2"W x 9.4"H


Power Source: Battery Powered


Room Type: Kitchen, Living Room, Bedroom, Library, Office


Shape: Rectangular


Indoor/Outdoor Usage: Indoor


Material: Plastic


Theme: Plain


Frame Material: Plastic


Are Batteries Included: No


Mounting Type: Wall Mount/Tabletop


Item Weight: 1 Pounds


Alarm Clock: Yes


Watch Movement: Automatic


Number of Items: 1


Operation Mode: Atomic


Item Weight: 1 pounds


Manufacturer: LFF


Country of Origin: China


Item model number: LWC100


Date First Available: October 14, 2022


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Thursday, Jan 8

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


  • Very Easy to Set Up and Easy to See
Color: Black
I work at home and wanted an accurate clock with outside temperature in my office. I love the font size and the outside sensor is great. I've had other satellite clocks that were hard to set up. This one has great instructions and easy setup. It's a great value for the money.
Reviewed in the United States on April 18, 2024 by G. Smith

  • Large, easy to read characters and easy to setup. Great functionality!
Color: Silvery
This is a very nice digital clock, numbers and other characters are very easy to read as they are large and have good contrast with the background of the display. Have only used it a short while, but, with several previous units under my belt, I do believe this one will give better and longer-term service. It seems well made and so far has been very accurate with all its measurements. Outside sending unit is about forty feet distance and works perfectly. ... show more
Reviewed in the United States on June 14, 2023 by Touseef Ali, Syed

  • Huge and Very Useful
Color: Black
This clock is very large! The time display can be seen from a long distance. This replaced a very old clock we had, and once we placed this clock over our sink above our windows I couldn't believe how it is so very easy to see the display. I can be 25 feet away and still see the whole clock's different gauges. I am blown away at how useful this is! The only thing I wish it had is a barometer, but I would recommend this highly. Also, we don't use the alarm function as we don't need it. If you are looking for a clock you can see very easily and has wonderful functions, then this is the clock you want to purchase! We've had the clock for about 6 weeks now, and I am thinking about getting one for the living room. ... show more
Reviewed in the United States on July 28, 2023 by Denise Messier

  • Clock
Color: Black
Very easy to read and accurate. Frame weight balance tilts slightly to one side. Atomic clock and date resets occasionally. Placement of outdoor sensor is critical for temperature and humidity readings.
Reviewed in the United States on January 31, 2024 by Steven Lusby

  • very pleased with the LFF 15" Atomic Clock *updated
Color: Black
We've had the LFF 15" Atomic large characters clock 90 days now and have been thoroughly pleased with it. We've hung ours in a 90yo's bedroom, where having the large digits has been ideal. We liked that it's not backlit seeing as how it's in a bedroom. The LCD numerals are dark and well contrasted against it's slightly blueish hue background. Having the date and day displayed makes great for early morning wake ups/reminders. The dual temperatures and humidity percentages, that we're using for outside & inside (see more momentarily), is awesome, and thus far accurate. The atomic connection has been set-it-and-leave-it thus far (with one daylight "savings" time change under our belt). I am impressed with the range of the sensor sending strength, as it's on opposite ends of our 1430sq ft home with a brick wall and kitchen in between it and the bedroom it's in. i did have to relocate the sensor unit from under an east side eve, as the morning sun was warming it (and/or the brick wall) and skewing the early day temps. I moved it to the north side, which gets zero direct sun year around, and it's matched internet reported temps ever since. Speaking of the sensor, while i like the display of temp & humidity directly on it, note that it's a very small (tiny) display, relatively, so it requires being pretty much in hand's reach distance to read it (i was hoping to be able to see it from inside through our kitchen window, as dual feature, but being LCD and tiny, again, relatively, it didn't work for that for us); being able to compare it with the inside unit is neat though. The occasional pulsing red LED battery indicator is visible from longer distances and is a nifty feature as well. Back to inside, using it as a wall clock, we've not used the alarm or other daily-type options, so can't speak to those. We haven't had low batteries yet, so also can't speak to it's feature of having a low battery notification. We feel we're getting out $65 (+sales tax) worth with it, thus far... *09-2023 update: 3 times now in about as many months, upon awaking in the morning we find the time wrong, twice including day, date, month & year (temperatures and humidities unaffected). Each of the first two instances, we reset it to have it stay accurate for awhile, to then eventually be off again. The last instance was merely that the time was 2 hours off*late. One other time, the date was off by by several years (into the future) along with month/day, plus time off, PM instead of AM. This was with the device set to nightly auto-check the atomic signal; we've now disabled that feature to monitor the issue further... (additionally, fwiw, we're still on original batteries, in both the clock and the sensor; have had no low battery signal thus far; we're not using the alarm feature) ... show more
Reviewed in the United States on April 4, 2023 by eye2i2hear

  • Works great
Color: Black
Very large which I like
Reviewed in the United States on May 8, 2024 by Amazon Customer

  • Not accurate in cold season...
Color: Black
This has been a nice-sized wall clock and we have been happy with seeing the outdoor temperature but now it is winter and it has been ridiculously off with accuracy. I was hoping to see replacement sensors available so we do not have to buy an entirely new set... The battery life is not a big issue... it doesn't have a color display or backlight and the batteries were fine when it started malfunctioning. We replaced all of the batteries with new Duracell and it is still not working right. VERY DEFEATING that it hadn't lasted a year and it is another bad investment as it is out of the window to return this. I feel it is ridiculous that we are always forced to buy an extended warranty on products that will not function as intended for even one year. Seems like it would be more honest to increase the price advertised to include the coverage you will need to last AT LEAST a few years. ... show more
Reviewed in the United States on January 21, 2024 by Daniel Schwab

  • Very Nice!!
Color: Silvery
This thing is awesome, easy to set up and very easy to see!!
Reviewed in the United States on March 28, 2024 by RickMotter

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