14 best led atomic alarm clocks

A LED atomic alarm clock is a modern electronic timekeeping device that combines the features of an alarm clock with the accuracy of an atomic clock. Here are the key features and information related to LED atomic alarm clocks:

  1. Atomic Timekeeping: LED atomic alarm clocks are designed to automatically synchronize with atomic clocks, which are highly accurate timekeeping devices that receive radio signals from atomic time standards. This ensures that the clock displays the precise and accurate time.

  2. LED Display: These clocks typically feature LED (Light Emitting Diode) displays that are easy to read, even in low-light conditions. The LED display can show the time, date, and sometimes other information like temperature and humidity.

  3. Alarm Function: As alarm clocks, they include alarm settings that allow users to set wake-up alarms at specific times. The alarms are accompanied by sound, which can vary in intensity and tone.

  4. Snooze Function: LED atomic alarm clocks often include a snooze button or function, which allows users to temporarily silence the alarm for a few extra minutes of sleep.

  5. Date and Calendar Display: Many LED atomic alarm clocks also display the date and calendar, providing additional information at a glance.

  6. Temperature and Humidity Display: Some models come equipped with sensors to measure temperature and humidity, and they display this information on the LED screen.

  7. Radio-Controlled: The term "atomic" in these clocks refers to their ability to receive radio signals from atomic timekeeping stations. These signals help keep the clock's time accurate to within a fraction of a second.

  8. Automatic Adjustments: LED atomic alarm clocks automatically adjust for Daylight Saving Time (DST) if the feature is supported in your region. This eliminates the need to manually change the time twice a year.

  9. Battery Backup: To ensure the clock maintains its timekeeping accuracy during power outages, many models include a battery backup feature.This backup power source keeps the clock running even when the main power source is interrupted.

  10. Design and Styles: LED atomic alarm clocks come in various designs, sizes, and styles to match different room decors and personal preferences. Some are sleek and modern, while others have a more traditional appearance.

  11. Multiple Alarms: Some models allow users to set multiple alarms for different times of the day or for different days of the week.

  12. Projection: Certain LED atomic alarm clocks come with projection features, allowing users to project the time or other information onto a wall or ceiling for easy viewing from different angles.

LED atomic alarm clocks offer the advantage of precise timekeeping without the need for manual adjustments. They are a reliable choice for ensuring you wake up on time while also providing useful information like date, temperature, and humidity.

Below you can find our editor's choice of the best led atomic alarm clocks on the market
  

La Crosse Technology 617-1485B Atomic Color Alarm Clock with USB Charging Port

La Crosse Technology

Based on 759 reviews Check latest price

Product description

Bedside alarm with loaded features including bright multi-color LED with large time digits and brightness control. View current room temperature (F/C) & humidity and their trends. Featured icons include moon phase, web connection, and low/weak battery indicator. AC adapter included for USB charging port to refill battery power in smartphone or other Mobile device. TROUBLESHOOTING STEPS: 1. Insert the 5.0 volt power cord into an outlet, then into your clock. Optional: Install 2-AAA batteries into your clock. 2. Use settings menu to program your clock. The backlight is adjustable - ADJUSTABLE BACKLIGHT • Power Cord: Press LIGHT HI-LOW-OFF button to adjust backlight. • Batteries only: (please ensure using batteries dated 2026 or newer) Press the LIGHT HI-LOW-OFF button for a 10 second backlight. Also, if to Manual WWVB Atomic Time Search • Hold the - button to start or stop a WWVB signal search. • WWVB Icon will flash when searching. ATOMIC SIGNAL SEARCH: The LCD backlight and USB charging port will momentarily turn off while the station searches for the atomic signal. The alarm clock will start searching at UTC 7:00, 8:00, 9:00, 10:00, 11:00.; If there is no WWVB reception, the alarm clock will search the WWVB time signal every 2 hours until the WWVB time is received. After reception, this alarm clock will only search for the atomic signal after midnight.

  • Atomic self-setting time and date with automatic Daylight saving time reset
  • USB charging port for mobile devices (charge cable not included)
  • Indoor temperature & humidity with trend arrows
  • Adjustable backlight settings
  • Moon phase icons

User questions & answers

Question: What type of battery for back up
Answer: Two AAA batteries for back up. It says to use Alkaline batteries
Question: Does this do military time
Answer: Yes, it can show 12- and 24-hour time. I have mine set on the latter. There are instructions in the manual for how to switch it.
Question: Can the user change the colors of the display, or choose to display all information in a single color
Answer: No. It has a multi color display. It also features the backlight dimmer that has high, low or off.
Question: can you turn off the display for sleeping
Answer: Yes there is large button on top part of clock that can adjust display ' brightness from very bright to off

Product features

La Crosse Technology Color LED Alarm Clock with USB charging port, Black
Electrical or battery operation

Continuous illuminated backlight with adjustable intensity settings (HI/Low/off) when operating on AC power.

On-demand backlight illuminates for 10 seconds when operating only on battery power (not included, required 2 new AAA alkaline brand).

Table or desktop use.

Included 5V A/C adapter or, battery operation requires 2 AAA alkaline batteries (not included).

Easy Accessible buttons (top of clock)

1) Hold Set button to begin.

2) Adjust values by using + or - buttons.

3) Press Set button to confirm values and continue in set up process.

Select from Fahrenheit (default) to Celsius temperature readings by pressing & releasing the F/C button.

Activate time alarm by pressing Alarm button to enter mode (AL will replace the seconds on display) Press Alarm again activates the alarm by displaying a bell icon between the Hour/Minutes.

Atomic time & date auto sets.

12/24 hr. time & 10 minute snooze alarm.

7 time zones: AST, EST, CST, MST, PST, AKT & HAT.

Calendar: month, day, date.

Indoor temperature (F/C) and humidity (%RH).

USB Charging port (charge cable not included)

Connect an external device's USB charging cable (not included) to the side of the alarm clock's USB port.

MAXimum current is 1AMP (charge those devices that are self-regulating).

Temperature Range: 32 F to 122 F (0 C to 50 C).

Humidity Range: 10% to 99% RH.

La Crosse Technology 617-249 1.8 Inch Curved Blue LED Atomic Dual Alarm Clock

La Crosse Technology

Based on 268 reviews Check latest price

Product description

Introducing a new vivid led dual alarm clock featuring a charging port for you smartphone or MP3 player. With many adjustable settings, you can set it to how you like it. Self setting time using WWVB radio frequency, your clock will be the most accurate and will automatically switch to/from daylight savings time. Indicates active alarms (A1/A2), DST, and your clock's WWVB signal strength. Adjust brightness settings & snooze duration up to 60 minutes. Includes power backup battery and AC adapter. Large blue led digits you can see from across the room.

  • Atomic time (Manual set option) and automatic DST updates (on/off)
  • Curved LED with bright 1.8Time display
  • 1 amp USB charging port (charge cable not Included)
  • Dual alarms (A1 & A2) with 4 stage ascending sound
  • Programmable snooze (5-60 minutes) and adjustable brightness & volume

User questions & answers

Question: I want a alarm clock that I can see at night. I can't see very well without my glasses. Do you recommend this? Do you have this in red numbers
Answer: Very visible. Don’t know about red numbers
Question: Does this clock auto reset time from the government radio station inCO
Answer: The clock will automatically search for the WWVB signal every night at 1:00 am, 2:00 am and 3:00 am. If there is still no WWVB reception, the clock will search WWVB time signal again at 4:00 am and 5:00 am alternatively.
Question: Is this dimmable
Answer: Yes but even on "dim" it's pretty bright. I have to turn the face of the clock away from pillows at night.
Question: Does it have a power supply (or does it have a port for a power adapter
Answer: Mine came with a power adapter.

Digital Alarm Clock, with Wooden Electronic LED Time Display, 3 Alarm Settings, Humidity & Temperature Detect, Wood Made Electric Clocks for Bedroom, Bedside, Black

JALL

Based on 27 reviews Check latest price
  • 【Dual plus Alarm Setting】- Updated in 2019 from dual alarms to three alarms. You can either set two or three alarms to better WAKE you up. One for you and the other for your families. Forever Say no to delay. Also, it allows you to set weekday mode, which will ring only on Monday to Friday
  • 【Stylish Wooden Design for Decor】- This must be the most delicate alarm clock you’ve ever seen. It’s not only a clock, but also a great decoration for your bedroom. Stylish appearance and multiple functions make it suitable as a gifts for kids
  • 【Multiple Brightness Level Adjustable】- Allows you to adjust from low to high brightness, or even turn off the LED light and keep it sound sensitive. It’s user friendly at night, which won’t be too harsh for your eyes.
  • 【Temperature and Humidity Detect】- with temperature and humidity sensor, it can monitor the indoor temperature and humidity. Just like a companion to protect your health.
  • 【Power Cord Operated】- This clock is operated by USB to barrel power cord. ***NOT Batteries operated***

User questions & answers

Question: If the power goes out, will it switch to battery power as a back-up (if i keep batteries installed while leaving the usb plugged in
Answer: Yes, it will. The battery can be a back-up power source to work.
Question: Does it have to be plugged in or can it work with only batteries
Answer: To maintain a stable power source. We recommend to be plugged in. If you use it only with batteries. It won't work for a long time. You may have to change batteries very often. Since the LED light consumes batteries really fast.
Question: Why my clock doesn't turn on until I touch it? Is it defective
Answer: I have the same problem. The clock worked fine for about 2 months. Then the display went off. Reconnect the power cord would light up the display. But it went off in 20 sec. It comes back when I touch it, but will go off again in 20 sec. Following the Common Trouble Shooting Q&A, double press the "Down" button does NOT fix the problem. Reaching out to their support to figure out why.
Question: Where can i find an instruction for the product? i have lost mine. i forget how to set am/pm
Answer: You can download the instruction here. https://images-na.ssl-images-amazon.com/images/I/A10i896yVSL.pdf Also, we have a video clips for guildance: https://www.youtube.com/watch?v=-7MNCBNNwBU Any further questions, please contact us directly. We provide 7/24 online service and 1-year warranty

Product features

3 Alarm Setting

It provides 3 alarm settings. You can set 3 different time on the same day. For example, if your wife and you wake up at different time, it’s certainly a good choice for you. What’s more, it can also be as a medicine reminder for the ages. There’s an extra mode “oN:E” or “--:E” to decide whether it rings on weekend or not.

Multiple Level Brightness Adjustment

It provides multiple levels of brightness adjustment. It’s better to lower the brightness at night so that it won’t be too sharp for your eyes.

La Crosse Technology 602-249 Curved Mirror LED Alarm Clock with Temperature & Humidity with USB, White

La Crosse Technology

Based on 64 reviews Check latest price

Product description

Fashionable curved clock and weather instrument offers curve-appeal. Offers dynamic white LED display with a mirrored lens which can be seen from across the room and in darkened rooms. Features dual alarms and automatic dimming backlight settings. Displays your current indoor temperature (F only) and humidity and charges a mobile device with bonus USB port in the back of the clock. Table standing clock and operates on included DC adapter and requires (not included) one CR2032 for power outages. With its extra bright LED, this indoor clock/thermometer is great for viewing in the night also! So many features from one convenient display.

  • 1. 76" White LED Time with 12/24 hour mode
  • Dual Alarm Function with programmable snooze (5 to 60mins)
  • Indoor Temperature & Humidity (%RH)
  • Auto dim with adjustable brightness settings (HI/LO/OFF)
  • AC Powered clock (optional battery backup (keep time/alarm, if power loss) requires 1 CR2032 button cell battery (not included, battery will not operate clock)
  • Power Source Type: Corded Electric

User questions & answers

Question: Does it have a daylight saving time mode
Answer: No. It is just a clock.
Question: Does it get very dim at night (for sleeping) with the automatic dimming function
Answer: Do you mean changing "12H" or "24H". Please hold "DOWN" button for 3secs. you may see "2020". That's the "Year" value. Then press "SET" button to confirm and next. Then it's month and date. After that you can choose "12H" or "24H". If you cannot solve your problem, please contact us according the back of the clock. Provide us a video to show what's going wrong.
Question: Is the display visible if the clock is above the horizon ( i.e. on a mantel and you are looking up from seated position
Answer: if the case is not too thick, it can. It should be not more than 8 mm
Question: My clock keeps displaying the same temp and humidity level. Is there a setting or is my clock broken
Answer: inside it's real wood and it's covered by a colored sticker. Sticker is for changing color easily.

AcuRite 13003 7-Inch Digital Alarm Clock

AcuRite

Based on 1 reviews Check latest price

Product description

Set & Forget® Technology automatically adjusts for daylight savings time! This convenient feature also allows the unit to automatically display the correct time from the moment you plug the unit in or install batteries. It will even display the correct time after a power outage.

  • Automatically adjusts for Daylight Saving Time (DST)
  • Large LED display area, Loud audible alarm, Snooze button
  • Electric AC power cord with CR2032 coin cell battery backup (included)
  • 6-foot power cord, Time Zone settings for HAST, AKST, PST, MST, CST, EST and AST
  • 3.3-inch Height x 7.1-inch Width x 2.8-inch Depth
  • This remembers time and alarm settings after power interruptions or unplugging
  • Automatically adjusts for Daylight Saving Time (DST

User questions & answers

Question: Can this do 24 hour format? Military time
Answer: Yes, there is a DST button.
Question: What is the AC power source for this clock
Answer: Yes it does
Question: Does this work with the new standard time/daylight savings time dates that were changed in
Answer: Mine is just below eye level when sitting on a sofa. I raised it above viewing level and it is still crystal clear. My new Verizon box had no digital time display and this was a logical solution. It is viewable at all lighting/time of day levels.
Question: how big is the display
Answer: I think it is broken

Product features

7-Inch Jumbo Alarm Clock

The AcuRite 7-inch Intelli-Time Digital Alarm Clock features the time in extra large digits with Intelli-Time Technology to ensure that your clock and alarm are accurate even after power interruptions or unplugging. Intelli-Time clock automatically updates itself for Daylight Saving Time. The large display digital clock features a bold, easy-to-read LED screen, loud alarm and snooze button. One-year limited warranty. It's more than accurate, it's AcuRite.

Oenbopo Alarm Clock, LED Digital Clock with 6.5" Large Display, Dual USB Charging Ports, Snooze Function, Diming Mode, Black Body Mirror Surface Clock for Bedroom Living Room Office (Blue Digital)

oenbopo

Based on 759 reviews Check latest price
  • 6.5 inch Large LED Display Wakeup Clock - This alarm clock designed as exquisite mirror surface style, made from quality ABS, with 6.5 inch large LED display, bold fonts, easy to view. A perfect accessories for your home living room bedroom decor and portable for travel use
  • Alarm Clock with Dual USB Charging Ports - With two USB charging ports on the side of the digital clock, so you can charge two smart devices simultaneously with total 2.1A output, more convenient for using
  • 3 Levels Display Brightness Adjustable - Can be set LED 3 level display brightness, you can set the light as your need and you can see the time clearly in the night, built-in automatically dimmer, the LED brightness will automatically dim in darker places when Auto Mode is On
  • Easy to Set & Easy Snooze Function - Just long press or short press the button to set the clock, with big easy snooze button and loud alarm natural sound for heavy sleepers, you can set the snooze time as your prefer, wake up under your control
  • USB Powered Clock with Memory Function - 6.56ft long USB cable(included) to plug in for safe power supply, can be driven via TV, PC, Power Bank, USB Adpater, Phone Charger, Any USB outlet, etc. Built-in mini CR2016 button lithium battery helps to memorize all setting, no need to set the time again when it powers off

User questions & answers

Question: Can the clock use 220v power supply
Answer: The one I purchased does not appear to offer the 24 hour "military time" or "Zulu" option which I would have preferred. The features that it does offer that made the clock acceptable for me are the super large digits and a switch on the rear of the clock that allows for changing back and forth between all USA and Canadian time zones without resetting the clock. There is also another switch that changes from standard to daylight saving and back.
Question: I keep trying to reset the auto brightness-it comes on too early in the morning. I'm reading the directions-what am I doing wrong
Answer: Standard North American 115V. Backup power factory installed CR2032
Question: How do you remove the protective film from the mirror face
Answer: It did adhere to daylight savings time, but it started out being 4 minutes off and by the time it got to 11 minutes off I tossed it. There is no way you can reset the time.
Question: I have to set the clock again if the power-off
Answer: The front of the clock is 8" x 3.5". The digits are 2.25" high. It's a great clock. I couldn't find anything else with big numerals this inexpensive.

Marathon USB Charging Alarm Clock, with Dimmable Curved Screen. 2 Alarms and Snooze Function. Battery Backup Included (Black/Red)

Marathon

Based on 228 reviews Check latest price

Product description

Marathon's LED Alarm Clock USB Charging Station has many features that make it an excellent addition to your nightstand or bedside table. The first thing that separates this clock from the rest is the easily accessible USB port located on the right side of the clock. This port is fast charging and perfect for your phone or tablet. Second, the illuminated digits are bright and easy to read in the dark. If you find them too bright when you are trying to fall asleep there is a dimmer switch to lower the intensity of the illumination. If it is still too bright, there is a button to turn the display off altogether, without interfering with your charging device. The alarm ON/OFF switch and SNOOZE button are conveniently located on the top so they are easily located in the dark.

  • BRIGHT LED DISPLAY WITH 4.7 cm LARGE DIGITS: Variable display modes, choose between high (bright), low (dim) or off
  • USB CHARGING: 1 Fast charging USB port on the right side for convenience
  • ALARM WITH SNOOZE: Easy to set alarm with snooze function (5 minute intervals)
  • SLEEK MODERN DESIGN: Curved shape creates optimal viewing angle and unique appearance
  • AC ADAPTER: Universal AC Adapter. Battery Backup for clock. Includes batteries.

User questions & answers

Question: Does the alarm clock have auto time setting
Answer: Very poorly written instructions and no customer support phone # to call--leaves it useless.
Question: what color is the numbers
Answer: Automatic & Manual dimming set: 1.Press and hold "+" button for 3 seconds. After "OFF" displayed for three seconds, switch to manual mode 2.In manual mode, long press "+" button for 3 seconds. After "ON" displayed for three seconds, switch to auto mode 3.The default is auto mode Night mode setting: 1.Night mode means that LED automatically enter into the low brightness display status at night 2.In time display mode, press “M” button twice to turn on (display ON)/off (display OFF) the night mode 3.In night light mode, during the period of 18:00 to 6:00 the next day, it will automatically enter into low brightness display status. Select ON or OFF by pressing "+" or "-" manually 4.When night mode is “ON”, long press “M” button to enter interval time setting mode. The setting sequence is: “start hour” – “start minute”- “end hour” –“ end minute”. At start hour and minute setting status, the upper point in the center of the screen is long bright. At end hour and minute setting status, the lower point in the center of the screen is long bright.
Question: In case of power outage, does the clock still display the time
Answer: It was very difficult. I started at a corner. Once I was able to lift a tiny piece with my nail, I was able to pull the rest off. It takes a while to lift the first piece.
Question: If no alarm is set do the "bells" still show
Answer: Just as described, this clock built-in mini button lithium battery helps to memorize all setting even powers off, but you have to tear the insulation sheet on the back button before using.

Product features

Marathon USB Charging Alarm Clock - Hotel Collection

Marathon's LED Alarm Clock USB Charging Station has many features that make it an excellent addition to your nightstand or bedside table. The first thing that separates this clock from the rest is the easily accessible USB port located on the right side of the clock.

Dimmable Curved Screen

This port is fast charging and perfect for your phone or tablet. Second, the illuminated digits are bright and easy to read in the dark. If you find them too bright when you are trying to fall asleep there is a dimmer switch to lower the intensity of the illumination.

2 Alarms and Snooze Function. Battery Backup Included

If it is still too bright, there is a button to turn the display off altogether, without interfering with your charging device. The alarm ON/OFF switch and SNOOZE button are conveniently located on the top so they are easily located in the dark.

Mpow Digital Alarm Clock, 5'' Curved Led Screen, 6 Brightness, 3 Alarm Sounds, Easy Digital Clock for Kids and Adults, Alarm Clocks for Bedrooms Kitchen Office, Adjustable Volume, Snooze, 12/24H

Mpow

Based on 10 reviews Check latest price

Product description

3 Optional Alarm Sounds with High/Low Volume Adjustment 

Enjoying waking up by nature’s sound: wave, bird’s singing or chord ringtone.

The alarm volume can be set to high or low with one button switch.

 

Easy-to-use Control Buttons

With large snooze button on top, mornings just got easier. Enjoy a comfortable and prolonged wake-up with the repeating snooze option, and experience zero stress when setting the time or alarm.

 

Large 5 inch Display

Mpow digital alarm clock boasts a large, 1.4-inch LED for increased visibility. The time and alarm indicator are clearly displayed on it. Time displays in both 12 and 24 hours formats.

 

How to Set Alarm Clock Ringtones:

1. In the Time Display mode, press “+” button once, it will play one ringtone.

2. Press the “+”button once more, it will switch to other ringtone. Three ringtones can be changed circularly.

3. Each ringtone will automatically turn off after 5 minutes. The last ringtone you selected will be set as the alarm sounds.

NOTE: Before selecting the ringtones, please push the button to the “LOCK” position.

 

How to Set Snooze Time:

1. When the alarm is activated, the alarm icon will be displayed on the screen. When the alarm is ringing, the alarm icon will flash, press the “Snooze” button once to temporarily stop the alarm. It will ring again after 9 minutes.

2. When the alarm is sounding, press “+” or “-“button to turn off the snooze function, the alarm will stop ringing.

 

Package Included:

1 × Mpow Digital Alarm Clock

1 × Power Adapter

1 ×USB Charging Cable

1 × User Manual

  • Blue Led Display with 6 Dimmer: With special curved LED screen, time is clear to see from multi-angle across bedroom living room kitchen. You can choose 5-level brightness or completely off when sleeping.
  • 3 Alarm Sounds with Adjustable Volume: You can choose buzzer, bird’s singing or chord ringtone to wake you up, adding a good mood for starting a new day. Two levels of volume for you to choose: 75dB or 85dB.
  • Easy to Use for Kids Seniors: With absolute simplicity and clear indicators, this basic curved digital clocks is simple and easy to operate. Great gift for children family kids seniors elderly and teens.
  • Big Snooze Button for 9 Minute's Extra Sleep: Press the Snooze button after the wake-up alarm sounds, you will enjoy extra 9-minutes sleep. The Snooze button is designed Big for easy searching.
  • Best Gift & Power Adater included: The compact streamline design matches for any decoration. Great Christmas gift, useful for office desk nightstand bedroom clock. Unlike others, Mpow Led alarm clock especially includes power adapter along with clock, micro Usb cable and manual.

Product features

Getting up is No Longer Difficult

Getting up is an extremely difficult thing for most of people, especially for who stays up late last night. That’s why we need an alarm clock to wake us up every morning.

Mpow Digital Alarm Clock with features of beautiful alarm sounds, precise time and user-friendly designwill be your reliable assistant for wake-up service. The clock designed with a USB connector allows you to power it with any USB devices such as laptop, adapter and power bank, so you can conveniently take it wherever you go.

6-level of Brightness

Freely adjust the brightness of digit in 6 levels to cater for your different needs. (off/low/medium-low/medium-high/high/full light)

Tips:In time display mode, Just short press the "SNOOZE" button to adjust the brightness for your preference.

12/24-Hour Display

The time can be set to show in 12-hour or 24-hour.

Just short press the "-" button to convert the time display according your own reading habits.

Simple and Elegant Look

The digital alarm clock with curved screen is elegant and attractive.

Perfect to place it on the desk in bedroom, office, kitchen, etc

To work normally, please keep it constantly plugged in. The button cell battery(built-in) preserves time and alarm settings , but the display will not be visible until power is restored.

Gift for the Beloved

Best Gift for Christmas, Thanksgiving Day;

Gift for Friends, family, Children, Parents and Kids

Sharp Atomic Desktop Clock with Color Display - Atomic Accuracy - Easy to Read Screen with Calendar & Day of Week Time/Date Display - Auto Set Digital Dual Alarm Clock - Perfect for Nightstand or Desk

Sharp

Based on 955 reviews Check latest price
  • COLOR ATOMIC DUAL ALARM CLOCK - Accurate to the Second! The Atomic Clock has a built in receiver that automatically synchronizes itself with the WWVB radio broadcast by the US Government’s National Institute of Standards and Technology (NIST) in Fort Collins, Colorado. The Atomic Clock will always be accurate to within on second as it receives daily WWVB updates.
  • COLOR CALENDAR & DAY OF WEEK DISPLAY - Always know what day of the week it is with a quick glance. The clock displays the calendar and the day of the week. Using the Snooze/Dimmer switch on top of the display, you can easily adjust the display brightness to your liking.
  • EASY TO SET DUAL ALARM - Set alarm for two people, or set one alarm for weekdays and the other for weekend!. Snooze/Dimmer Switch is simple to use and on top of the display.
  • "NO WORRY" BATTERY BACK-UP - There is a "No Worry" battery back-up option (requires 2 x AAA battery, sold separately), that will allow the alarm to go off, even if the power goes out. The battery back-up stores the time and alarm settings if the power is interrupted. During battery back-up the clock’s display will not be lit. Once power is restored, the display will re-light.
  • VARIABLE BACKLIGHT ON DEMAND - Press the snooze button on top of the clock to activate the 3-Step Dimmer Control, illuminating the whole display for 5 seconds. The backlight will also illuminate when the alarm sounds.

User questions & answers

Question: How do you increase the sound of the alarm
Answer: There is no volume control, if you feel something is wrong with the clock's alarm please reach out to customer service at [email protected] for warranty information.
Question: How do I change the time to regular time vs military time? When I set the clock it did not have the “pm” setting
Answer: Toggle 12 and 24 hour time by pressing the "12/24 WAVE" button.
Question: can this be placed anywhere or does it have to be in a window
Answer: This clock does not have to be near a window at all times but this does help during initial set up for connection to the atomic signal.
Question: Is this clock primarily to be used via standard AC power? I note that it has optional (?) battery backup
Answer: This clock is electric operated; the battery backup does not power the clock. The battery backup is used for storing the time and alarm settings if the power is interrupted. During battery backup the clock’s display will not be lit. Once the power is restored the display will re-light.

Product features

Easy to Read Color Display - Easy to Use - Atomic Accuracy

Color Calendar and Day of Week Display - Always know what day of the week it is with a quick glance. The clock displays the calendar and the day of the week. Using the Snooze/Dimmer switch on top of the display, you can easily adjust the display brightness to your liking.

Never Needs Setting -Easy to Read Color Display with Date and Day of the Week Display

- The Sharp Color Atomic Wall Clock has a built in receiver that automatically synchronizes itself with the WWVB radio broadcast by the US Government ‘s National Institute of Standards and Technology (NIST) in Fort Collins, Colorado. The Sharp Atomic Clock will always be accurate to within one second as it receives daily WWVB updates.

- Calendar and Day of Week ColorDisplay - Always know what day of the week it is with a quick glance. The clock displays the calendar and the day of the week.

- 3-Step Dimmer Control for Variable Backlight Control allows you to illuminate the display to your desired brightness.

Sharp (SPC569) - East to Read Color Backlit Display

Always know what day of the week it is with a quick glance. The clock displays the calendar and the day of the week. Using the Snooze/Dimmer switch on top of the display, you can easily adjust the display brightness to your liking.

Simple Easy to Use Controls

Clean, elegant design that will fit into any decor. Controls are easy to use and are on the back of the clock to give a clean simple look to any room.

Perfect Size for Bedroom, Office , or Living Room

Perfect size clock will fit almost anywhere , but is still easy to see and use with the elegant color display.

SHARP - A Name You Can Trust.

Sharp has been making quality alarm clocks for over 25 years and is the largest suppler of Retail Alarm Clocks in the United States with over 61,000,000 sold. Millions trust us with helping them start their day and staying on track.

DreamSky Auto Set Alarm Clock with USB Charging Ports, 6" Large Display with Indoor Temperature & Humidity, Date/Day & Moon Phase, Brightness Dimmer, Auto DST, Backup Battery

DreamSky

Based on 982 reviews Check latest price

Product description

DreamSky Self Setting Alarm Clock with Indoor Temperature & Humidity

  • Self-Setting Alarm Clocks with Auto DST: plug in the clock and it sets itself, no need to set time manually. Time automatically changes for Daylight Saving Time, no reset hassle. Eight time zones optional: EST/ CST/ MST/ PST/AST/HAT/AKT.
  • Large Clear Display with Temperature & Humidity: the 6.6 inches large screen displays the clock time, day of the week, date, time zone & moon phases, which is easy to read at any angle. The Swiss high precision SHTC3 humidity gauge and temperature sensor assist you to maintain an accurate indoor air quality for your family.
  • 6 Level Brightness Plus Auto Dim Mode: 6 level adjustable brightness plus auto dimmer allow you to dim the clock display to a comfortable level on your preference. No glaring light at night but bright enough to read time.
  • Bedside digital Alarm Clock with USB Charging Port: alarm goes off with ascending beeping frequency, which lasts for 2 minutes. No jarred awake nor blaring sounds. The snooze feature allows you to catch more sleep. An extra USB port serves as a charging station for your cellphone etc.
  • Outlet powered desk clocks with Battery Backup: clock is adapter powered and 3 *AA backup batteries (not included) will keep the clock running and trigger the alarm in the case of power cut. No need to worry about oversleep.

Product features

Important: The USA local time is downloaded to the digital clock & reserved with a button cell battery. You only need to set a time zone before use.

SMARTRO SC91 Projection Alarm Clock for Bedrooms with Weather Station, Wireless Indoor Outdoor Thermometer, Temperature Humidity Monitor Gauge Hygrometer

SMARTRO

Based on 2 reviews Check latest price
  • TIME & TEMPERATURE PROJECTION: Perfect alarm clocks for bedrooms. The projected temperature changes from indoor temperature to outdoor temperature automatically. Alarm clock projected in a soft red color on ceiling or wall is easy to see throughout the room. Adjustable projection angles and brightness - It can be reversed by 180 degrees for optimal viewing and meet different users preferences.
  • INDOOR/OUTDOOR THERMOMETER GAUGE & HUMIDITY MONITOR: Equipped with professional grade inside outside thermometer and humidity monitor provides most accurate measurements, displayed with Indoor/outdoor temperature and humidity, allows you to be aware if adjustments are necessary. Ideal alarm clock for home, keeps you and your family's living conditions optimal.
  • WIRELESS COLOR WEATHER STATION: 12/24 hour, date, and weekday in large number; Clear weather patterns, mold alerts and mold risk displayed on large 4.5” LCD Screen. Digital weather station predicts the weather for the next 12 hours as well as the barometric pressure trend and temperature trend. Adjustable backlit dimmer (light - medium - low - out) with DC power adapter, enables you to set the display to a brighter setting in daytime and softer one at night.
  • WIDE APPLICATION: Connect up to 3 wireless remote sensors for 3 channels (note: package only include 1 sensor, buy separately from our store if you need more). Remote sensor with transmission large range up to 200ft/60m in an open area, you can place the projection clock in your room, and put remote sensors to baby room , warehouse or other places need to gauge.
  • DUAL ALARMS WITH SNOOZE FUNCTION: Set 2 separate alarms repeat in M-F, S-S, or M-F and S-S for different purposes. The alarm will automatically turn off if left alone for 2 minutes. With snooze function, this projection alarm clock allows you to set 5 ~ 60 minutes’ sleep time or turn SNOOZE function off - A step towards the practical use.

Product features

All in One Multi-functional Projection Alarm Clock

  • Weather Forecast Function

With perfect size 6.6 inch x 3.9 inch (L*H) for looking great and showing all the details you require on the display.

The weather station forecasts the weather status of the following 12 hours in symbols: sunny, slightly cloudy, cloudy, rainy, heavy rainy, snowy.

  • Set Two Separate Alarms for Different Purposes.

— M-F: The alarm function will be activated from Monday to Friday.

— S-S: The alarm function will be activated on Saturday and Sunday.

— M-F and S-S: The alarm function will be activated throughout the week.

With snooze function, this alarm clock allows you to set 5 ~ 60 minutes’ sleep time or turn SNOOZE function off.

The alarm will automatically shut off if left alone for 2 minutes, It changes 4 times in total during the past 2 minutes.

Temperature Humidity Monitor Gauge

· Equipped with professional grade wireless inside outside thermometer and humidity monitor provides most accurate measurements.

· Displayed with Indoor/outdoor temperature (°C/°F adjustable) and humidity (%RH), allows you to be aware if adjustments are necessary.

· Perfect alarm clocks for bedrooms, keeps you and your family's living conditions optimal.

Never Run Out of Power

· Built-in battery, the digital weather station will not lose data whenever you unplug or re-plug it.

· Plug in the power adapter for normal use.

· With standing support on the back.

· Product dimensions: 6.6 inch x 3.9 inch (L*H).

Easy to Operate

· There are 7 buttons on the top of the clock.

· Read the user manual before use.

· Press the corresponding button to set the clock easily and efficiently.

· Convenient to stand on the bedside table, bedroom, living room and so on.

Adjustable Projection Angles & Brightness

· The suggested distance of projection is 3.3 ~ 9.8 ft (1 ~ 3 m).

·Switchable brightness of projection from high to low, or low to high.

· Temperature display changes from indoor to outdoor temperature automatically.

SHARP Easy to See Alarm Clock with Jumbo 2” Numbers - Bright Blue LED Display - Easy Set-up & Simple to Use –See from Across the Room! - High/Low Alarm Volume

Sharp

Based on 866 reviews Check latest price
  • JUMBO 2" LED DISPLAY - Easy to see and read from across the room!
  • HIGH & LOW VOLUME CONTROLLED Choose the loud alarm setting for heavy sleeper & the low setting for those who wake more easily
  • HIGH & LOW DIMMER CONTROLLED Adjust display's brightness with 2 step dimmer control
  • EXTREMELY SIMPLE TO SET-UP & OPERATE - The cool clock has been designed with absolute simplicity in mind! The control buttons are on front of the clock for easy access! Easy for boys, girls, toddler, kids, teens, seniors and the elderly.
  • BATTERY BACK-UP - Electric operated with battery backup (2 x AA batteries not included)

User questions & answers

Question: Can you adjust the snooze time to 10 or 15 minutes? I don't want 9 minute snooze time
Answer: The Snooze time is fixed at 9 minutes and is not adjustable. Before digital clocks, engineers were restricted to nine-minute snooze periods by the gears in a standard clock. Today, digital clock industry has adopted the nine-minute snooze time as its standard.
Question: Mine didn’t have directions. Can someone tell me how to dim it? It’s too bright
Answer: There’s a botton on the front of the clock. Just ouch it and it will dim. Some reviewers still think the dimmer is too bright. I don’t find it a problem
Question: What are the dimensions of this clock
Answer: The body of the clock is L - 8.25" x W - 3.4" x H - 4.4" and the height of the display/ numbers is 2"
Question: Will the battery power the clock with the power out
Answer: The battery is a back up that stores the time and alarm settings. If you loose power the battery does not power the clock, but once the power is restored the clock will read to correct time and your alarm will be set.

Product features

Easy to Read - Simple to Operate - Quality Sharp Design

Easily see the alarm clock’s 2” tall blue led display from across your room! EXTREMELY SIMPLE TO OPERATE – This cool clock has been designed with absolute simplicity in mind! Easy for boys, girls, toddler, kids, teens, seniors and the elderly - Anyone who needs a simple design, easy to see and read clock!

Large Bright LED Display

- The Sharp (SPC745) has a bright, crisp jumbo display that is easy to read across the room. Bright 2" tall numbers make it easy to tell time at a glance

- The alarm has 2 settings , High and Low, which allow you to set the alarm volume to your personal preference.

- The Bright Blue LED display has 2 settings of "High" and "Low", so you can customize the brightness for your room. Both settings are easy to see, bright, and crisp.

Keyboard Style Controls on Front of Clock Make Setting Simple

- All functionality controls are on front of clock - making it easy to set the clock as desired for time, alarm volume, dimmer options, and snooze. The keyboard-style buttons are simple to operate. No fumbling around with the the back or bottom of the clock!

- There is a battery backup option which keeps the alarm set in case of power failure. (2 x AA batteries not included)

SHARP - A Name You Can Trust.

Sharp has been making quality alarm clocks for over 25 years and is the largest suppler of Retail Alarm Clocks in the United States with over 61,000,000 sold. Millions trust us with helping them start their day and staying on track

RCA Digital Alarm Clock - Large 1.4" LED Display with Brightness Control and Repeating Snooze, AC Powered – Compact, Reliable, Easy to Use Black

RCA

Based on 13 reviews Check latest price

Product description

Sometimes you just need something simple that's easy to use. RCA has you covered, with a streamlined alarm clock offering snooze, a simple interface, a large 1.4-inch display that's easy to see, and No Worry Corded-Electric or Battery back-up that lets you rest easy too. Refer to the User Manual for troubleshooting steps.

  • 1.4 inch red LED display
  • Easy to use control buttons
  • Repeating snooze functionality; large, full-width button to easily prolong your wake-up
  • High/low display brightness control
  • AC powered
  • “No Worry” battery backup option (9V battery not included) – when your power goes out, there is no need to worry – the time setting will be retained and your alarm will sound, however, the digital display will not light

User questions & answers

Question: Does it have a dual alarm
Answer: I have one in my unheated garage. I am not sure if I need to add another.
Question: does the display have a dimmer so it's not so bright at night
Answer: I never had roaches. However, I had a horrific ant problem. So I am guessing that since most insecticides are aimed at both, it will take care of them also. You will have to give it a couple weeks to see progress. What I can say is that when I first installed these, as days went buy I saw fewer and fewer. Now I see none at all.
Question: this is electric
Answer: Good Question. No where on the packaging or in the item description does it say anything about the working temp range.
Question: If it is in a darker living room where we are watching TV and it is 15 feet away, will we still be able to see what time it is
Answer: Sad to say, any chemical or poison you can lay down in trouble areas. For mosquitoes, you're kinda on your own. This particular item, even with all the verified purchases and positive claimed results, does not work as advertised. I would follow the recommendation of an exterminator in your area to best handle pests.

Product features

RCD30 Alarm Clock and Large 1.4-inch Display

Sometimes you just need something simple that's easy to use. RCA has you covered with an affordable, streamlined alarm clock that offers snooze, a large, red 1.4-inch display for increased visibility, and “No Worry” battery back-up that lets you rest easy. The time and alarm indicator are clearly displayed and the high/low brightness control lets you adjust the time readout as needed.

Easy-To-Use Control Buttons

With the simple user interface and large full-width snooze button on top, mornings just got easier. Enjoy a comfortable and prolonged wake-up with the repeating snooze option, and experience zero stress when setting the time or alarm.

No Worry” Battery Back-up

No need to worry if your power goes out unexpectedly. The battery back-up option retains the time setting and ensures alarm will sound, however, the digital display will not light. 9V battery not included.

DreamSky Auto Time Set Alarm Clock with Snooze & Full Range Dimmer 0-100% Adjustable Brightness, USB Charging Port, Auto DST, 4 Time Zones Alarm Clocks for Adult Kids Bedrom

DreamSky

Based on 1 reviews Check latest price
  • Elegant alarm clock with full range dimmer: 4.3 Inches large LCD screen displays eye easy catch blue digit, time and content are easy to read at a glance. 0%-100% adjustable dimmer enable you to set the brightness of display to a comfortable level at will.
  • Advance autoset time: The clock will sets itself to the correct time once plug in, hassle free to set time. Cell button battery included as backup battery, which will store the time, date and alarm setting during main power outage, however it will not support the time display nor trigger the alarm.
  • Auto DST and selectable time zone: Automatically adjusts to Daylight Savings Time while set the DST on. Four USA time zone selectable per your location (EST/ CST/ MST/ PST).
  • Ascending soft beeping alarm with snooze: Ascending alarm sound wake you up naturally. Additional snooze to counter oversleeping, simply press the snooze button once and go back to sleep. 8 minutes later the alarm will ring again.
  • Plug in clock with USB ports: one USB port connect the DC adapter (included) power on the clock. Let the other port charging your smart device like cellphone, tablet and mp3 players etc. Convenient and organized.

User questions & answers

Question: Why is product losing time? i waited until daylight savings time to see if that would clear it up when it auto-reset. cleared up 1 minute only. lynd
Answer: No idea why your clock is losing time. I’ve had mine for 6 months and it keeps time perfectly. It also changed for day light savings time. Maybe you should check the batteries just in case your power is being interrupted. Ask for a return authorization, get a new one. Hope you have better luck next time.
Question: how long is the power cord
Answer: Power cord is 5 feet long.
Question: Can I change the temperature to celsius
Answer: yes,,you can by pressing the TIME SET button once and the degree symbol will start to flash. During that time press the + or - tp select Celsius or Fahrenheit.
Question: Is this an atomic or skyscan that sets from satelite?e
Answer: It is atomic I believe. You set your time zone ( it is shipped already set to EST) If the power goes off it keeps the correct time for when the power comes back on but the alarm does not work during the actual power outage. I have not yet found one that does.

Product features

Important: The USA local time is downloaded to the digital clock & reserved with a button cell battery. You only need to set a time zone before use.

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