Introduction
This manual provides detailed instructions for the setup, operation, and maintenance of your MARATHON CL030058FB Compact Digital Alarm Clock. This device features a large, easy-to-read display, showing time, date, and temperature, along with an alarm and backlight function. Please read this manual thoroughly before using your alarm clock.
Product Features
- Large, easy-to-read digital display.
- Integrated temperature display (Celsius/Fahrenheit selectable).
- Date and day of the week display.
- Alarm with snooze function.
- Backlight for low-light conditions.
- Compact and portable design.
- Battery-powered for convenience.
Package Contents
- 1 x MARATHON CL030058FB Compact Digital Alarm Clock
- 2 x AAA Batteries
- 1 x User Manual
Controls and Display

Figure 1: Front display with labeled features and button functions.
The front display shows the current time, temperature, date, and day of the week. An alarm icon indicates when the alarm is active. The backlight can be activated by pressing the top button.

Figure 2: Rear view showing control buttons and battery compartment.
Button Functions:
- MODE: Cycles through display modes (Time, Alarm) and enters/confirms settings.
- UP (▲): Adjusts values upwards during setting; activates/deactivates alarm.
- DOWN (▼): Adjusts values downwards during setting.
- C/F: Toggles temperature display between Celsius and Fahrenheit.
- Top Button (Light/Snooze): Activates backlight; functions as snooze during alarm.
Setup
1. Battery Installation
- Locate the battery compartment cover on the back of the alarm clock.
- Slide the cover open.
- Insert two (2) AAA batteries, ensuring correct polarity (+/-).
- Replace the battery compartment cover.
2. Setting Time and Date
- From the normal time display, press the MODE button once to enter time setting mode. The hour digits will flash.
- Use the UP (▲) or DOWN (▼) buttons to adjust the hour.
- Press MODE again to move to minute setting. Use UP (▲) or DOWN (▼) to adjust minutes.
- Continue pressing MODE to cycle through and set the Year, Month, and Day using the UP (▲) or DOWN (▼) buttons for each.
- After setting the day, press MODE one last time to exit setting mode and return to the normal time display.
3. Temperature Unit Selection
- Press the C/F button on the back of the clock to switch the temperature display between Celsius (°C) and Fahrenheit (°F).
Operating
1. Setting the Alarm
- From the normal time display, press the MODE button until the alarm time is displayed (usually indicated by an alarm icon).
- Press and hold the MODE button until the alarm hour digits flash.
- Use the UP (▲) or DOWN (▼) buttons to adjust the alarm hour.
- Press MODE again to move to alarm minute setting. Use UP (▲) or DOWN (▼) to adjust minutes.
- Press MODE one last time to confirm the alarm setting and exit.
2. Activating/Deactivating the Alarm
- While in normal time display, press the UP (▲) button to toggle the alarm ON or OFF.
- When the alarm is ON, an alarm icon will appear on the display. When OFF, the icon will disappear.
3. Snooze Function
- When the alarm sounds, press the Top Button (Light/Snooze) to activate the snooze function. The alarm will pause and sound again after approximately 5 minutes.
- To turn off the alarm completely, press any other button on the back of the clock.
4. Backlight
- Press the Top Button (Light/Snooze) at any time to illuminate the display for a few seconds.
Maintenance
- Cleaning: Wipe the clock with a soft, dry cloth. Do not use abrasive cleaners, solvents, or chemical sprays, as these may damage the finish or internal components.
- Battery Replacement: Replace the AAA batteries when the display becomes dim or the clock's functions become erratic. Always replace both batteries at the same time.
- Storage: If storing the clock for an extended period, remove the batteries to prevent leakage and potential damage.
Troubleshooting
| Problem | Solution |
|---|---|
| Display is blank or dim. | Check if batteries are correctly installed. Replace with new AAA batteries if necessary. |
| Alarm does not sound. | Ensure the alarm is activated (alarm icon visible on display). Verify the alarm time is set correctly. |
| Time or date is incorrect. | Follow the "Setting Time and Date" instructions in the Setup section to reset. |
| Temperature reading seems inaccurate. | Ensure the clock is not placed near direct heat sources, cold drafts, or direct sunlight, which can affect sensor readings. |
Specifications
- Brand: MARATHON
- Model: CL030058FB
- Display Type: Digital
- Power Source: Battery Powered (2 AAA batteries included)
- Product Dimensions: Approximately 3"W x 3"H
- Item Weight: Approximately 3.52 ounces
- Frame Material: Plastic
- Features: Alarm Clock, Temperature Display, Date Display, Backlight
Warranty and Support
This MARATHON CL030058FB Compact Digital Alarm Clock comes with a limited warranty. For detailed information regarding warranty coverage, terms, and conditions, please refer to the official MARATHON website or contact their customer support directly. For further assistance with product operation, troubleshooting, or parts, please visit the MARATHON Brand Store or contact customer service.