Introduction
This manual provides comprehensive instructions for the Geevon Atomic Digital Alarm Clock, Model 22116. This device features precise atomic time synchronization, dual alarm settings, an indoor temperature display, and two backlight modes for enhanced visibility. Please read this manual carefully before use to ensure proper operation and to maximize the product's lifespan.

Image: An overview of the Geevon Atomic Digital Alarm Clock, highlighting its LCD display and various functions.
Key Features
- Atomic Time Synchronization: Receives daily WWVB updates for accurate timekeeping within one second. Supports 7 time zones and Daylight Saving Time (DST) function.
- Dual Alarm Settings: Configure two independent alarms with a gradually ascending beep sound to ensure you wake up gently.
- Snooze Function: Provides an additional 5 minutes of sleep by pressing the top button when an alarm sounds.
- Two Backlight Modes:
- Automatic Nightlight: A soft, dim backlight activates automatically in dark environments when the "AUTO LIGHT" switch is set to "ON".
- 8-Second Backlight: Press the top button to activate a brighter orange backlight for 8 seconds, useful for checking the time in the dark when the auto light is off.
- Indoor Temperature Display: Monitors and displays the indoor temperature in either Celsius (°C) or Fahrenheit (°F).
- Multifunctional Display: Features a clear LCD screen showing time (12/24 hour format), date, day of the week, and temperature.
- Portable Design: Compact and lightweight, powered by 2 AA batteries (not included), making it suitable for travel or bedside use.

Image: The Geevon Atomic Digital Alarm Clock with a visual representation of its various functions, including time, dual alarms, calendar, smart night light, 8-second backlight, atomic clock, DST, and indoor temperature display.
Package Contents
The Geevon Atomic Digital Alarm Clock package includes:
- 1 x Geevon Atomic Digital Alarm Clock (Model 22116)
- 1 x Instruction Manual
Note: 2 AA batteries are required for operation and are not included in the package.
Setup
1. Battery Installation
Locate the battery compartment on the back of the alarm clock. Insert 2 new AA batteries, ensuring correct polarity (+/-). Close the battery compartment cover securely.
2. Initial Atomic Clock Synchronization
Upon battery installation, the clock will automatically attempt to synchronize with the WWVB atomic time signal. This process may take several minutes. During synchronization, all buttons are temporarily unavailable to prevent interference. Once synchronized, the time will be set accurately.

Image: The Geevon Atomic Digital Alarm Clock displaying the atomic signal reception icon, indicating successful synchronization.
3. Setting Time Zone and Daylight Saving Time (DST)
After initial synchronization, select your local time zone and enable/disable the DST function if applicable. Refer to the 'Operating Instructions' section for detailed steps on adjusting these settings.
4. Placement Guidelines
- For accurate temperature measurement, place the clock away from direct sunlight and heat sources.
- To ensure optimal atomic signal reception, position the clock away from large metal objects, thick walls, metal surfaces, or other obstructions that may limit reception.
Operating Instructions
1. Time and Date Settings
While the atomic clock function automatically sets the time, you can manually adjust settings if needed.
- Press the SET button (often represented by a gear icon) to enter time setting mode.
- Use the UP and DOWN buttons (arrow icons) to adjust the flashing value (e.g., hour, minute, year, month, day).
- Press SET again to confirm and move to the next setting.
- Press the MODE button (often represented by a clock icon) to exit setting mode.
2. 12/24 Hour Format Selection
To switch between 12-hour and 24-hour time formats, press the UP button during normal time display.
3. Setting Alarms
The clock features two independent alarms (Alarm 1 and Alarm 2).

Image: The Geevon Atomic Digital Alarm Clock displaying two alarm times (6:00 and 9:00) at the top of the screen, indicating the dual alarm feature.
- Press the ALARM button (often represented by a bell icon) to view Alarm 1 time. Press again to view Alarm 2 time.
- While viewing an alarm time, press and hold the ALARM button to enter alarm setting mode.
- Use the UP and DOWN buttons to adjust the hour and minute.
- Press ALARM to confirm each setting.
- To activate or deactivate an alarm, use the dedicated ON/OFF switches located on the side or back of the clock, or press the ALARM button during normal time display to toggle it. An alarm icon will appear on the display when active.
4. Snooze Function
When an alarm sounds, press the large SNOOZE/LIGHT button on top of the clock to activate the snooze function. The alarm will pause for 5 minutes and then sound again. The snooze duration is fixed at 5 minutes.

Image: The Geevon Atomic Digital Alarm Clock on a bedside table, illustrating the snooze function. The display shows the time and a 'Zz' icon, indicating that snooze is active.
5. Backlight Operation
The clock offers two backlight modes:
- Automatic Nightlight: Locate the "AUTO LIGHT" switch on the side or back of the clock. Set it to "ON" for a soft, dim backlight to illuminate the display automatically in dark conditions. Set it to "OFF" to disable this feature.
- 8-Second Backlight: When the "AUTO LIGHT" switch is "OFF", press the large SNOOZE/LIGHT button on top of the clock to activate a brighter orange backlight for 8 seconds.

Image: The Geevon Atomic Digital Alarm Clock in a dimly lit room, showing the display illuminated by the auto light function. A close-up of the "AUTO LIGHT" ON/OFF switch is also visible.
6. Temperature Unit Selection
To switch the indoor temperature display between Celsius (°C) and Fahrenheit (°F):
- During normal time display, press and hold the UP button for 2 seconds.
- The temperature unit will toggle between °C and °F.

Image: The Geevon Atomic Digital Alarm Clock displaying the indoor temperature (77.2°F) on its screen, highlighting the temperature monitoring feature.
Maintenance
1. Battery Replacement
When the display dims or functions become erratic, it is time to replace the batteries. Open the battery compartment on the back of the clock, remove the old AA batteries, and insert 2 new AA batteries, observing correct polarity. Dispose of old batteries responsibly.
2. Cleaning
To clean the clock, gently wipe the display and casing with a soft, dry cloth. Do not use abrasive cleaners, solvents, or immerse the clock in water, as this can damage the device.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Clock does not display anything or display is dim. | Low or dead batteries; incorrect battery installation. | Replace with new AA batteries, ensuring correct polarity. |
| Atomic time synchronization fails or time is incorrect. | Poor signal reception due to location; interference from electronic devices or metal objects; manual time setting error. |
|
| Daylight Saving Time (DST) adjustment is incorrect or delayed. | The clock may adjust DST on the day following the change, or the DST function is not enabled. |
|
| Alarm does not sound. | Alarm is not activated; alarm volume is too low (not applicable for this model as it has ascending beep). | Ensure the alarm ON/OFF switch is in the "ON" position and the alarm icon is visible on the display. Recheck alarm time settings. |
| Backlight is not working. | "AUTO LIGHT" switch is off; batteries are low; 8-second backlight not activated correctly. |
|
Specifications
| Feature | Detail |
|---|---|
| Brand | Geevon |
| Model Number | 22116 |
| Part Number | 86116 US |
| Color | Black |
| Display Type | Digital LCD |
| Power Source | Battery Powered (2 x AA batteries, not included) |
| Material | Acrylonitrile Butadiene Styrene (ABS) |
| Mounting Type | Tabletop |
| Product Dimensions (L x W x H) | 2.54 x 3.81 x 9.65 cm (1 x 1.5 x 3.8 inches) |
| Product Weight | 158.76 g (5.6 oz) |
| Indoor Temperature Range | 14.2 to 122 Fahrenheit (-9.9 to 50 Celsius) |
| Atomic Clock Feature | WWVB Radio Controlled, 7 Time Zones, DST On/Off |
| Alarm Features | Dual Alarms, Gradually Ascending Beep, 5-minute Snooze |
| Backlight Features | Automatic Soft Nightlight, 8-second Orange Backlight |
Warranty and Support
Geevon is committed to providing high-quality products and customer satisfaction. We offer lifelong consulting services for our products.
If you encounter any problems or have questions regarding the use of your Geevon Atomic Digital Alarm Clock, please contact Geevon customer support immediately for assistance.
Contact information can typically be found on the product packaging or the official Geevon website.