Introduction
This manual provides comprehensive instructions for the setup, operation, and maintenance of your Sencor SDC 2800 W Digital Alarm Clock. Please read this manual thoroughly before using the device to ensure proper function and to maximize its lifespan. Keep this manual for future reference.
Product Overview
The Sencor SDC 2800 W is a digital alarm clock designed for clear time display, date, day of the week, and temperature readings. It features two independent alarms and a backlight for visibility in various lighting conditions.

This image displays the Sencor SDC 2800 W Digital Alarm Clock. The large digital display shows the time as 12:58 PM, with a PM indicator and a backlight icon. On the right side, smaller digits indicate the date as December 30th (30.12), the day of the week as Monday (MO), and the current temperature as 20.6°C. Below the temperature, there are two alarm icons, labeled 1 and 2, indicating the presence of two settable alarms. The clock has a white rectangular casing with control buttons visible on the top edge.
Control Buttons (Top Panel)
- SET: Enters setting mode for time, date, and alarms.
- UP/DOWN (▲/▼): Adjusts values during setting mode.
- ALM: Activates/deactivates alarms and enters alarm setting mode.
- SNOOZE/LIGHT: Activates snooze function during an alarm; temporarily illuminates backlight.
Setup
Battery Installation
- Locate the battery compartment cover on the back of the alarm clock.
- Remove the cover by sliding or lifting it.
- Insert two (2) AAA batteries (not included) according to the polarity indicators (+ and -) inside the compartment.
- Replace the battery compartment cover securely.
- The clock will power on and display default settings or the current time if batteries were already present.
Operating Instructions
Setting Time and Date
- Press and hold the SET button for approximately 3 seconds until the time display starts flashing.
- Use the UP or DOWN buttons to adjust the hour. Press SET to confirm.
- Use the UP or DOWN buttons to adjust the minute. Press SET to confirm.
- Continue this process to set the year, month, and day.
- After setting the day, press SET to exit the time/date setting mode.
- To switch between 12-hour and 24-hour format, press the UP button while in normal time display mode. The "PM" indicator will appear for PM hours in 12-hour format.
Setting Alarms (Alarm 1 and Alarm 2)
- Press the ALM button once to display Alarm 1 time.
- Press and hold the ALM button for approximately 3 seconds until the Alarm 1 time starts flashing.
- Use the UP or DOWN buttons to adjust the Alarm 1 hour. Press ALM to confirm.
- Use the UP or DOWN buttons to adjust the Alarm 1 minute. Press ALM to confirm.
- Repeat steps 1-4 for Alarm 2 by pressing ALM again after setting Alarm 1.
- To activate or deactivate an alarm, press the ALM button repeatedly in normal time display mode until the desired alarm icon (1 or 2) appears or disappears on the display.
Snooze Function
- When an alarm sounds, press the SNOOZE/LIGHT button to temporarily silence the alarm. The alarm will sound again after a few minutes (typically 5-10 minutes).
- To turn off the alarm completely, press any other button (e.g., SET, ALM, UP, DOWN).
Backlight
- Press the SNOOZE/LIGHT button at any time to briefly illuminate the display backlight for better visibility in low light conditions.
Temperature Display
- The clock automatically displays the ambient temperature.
- To switch between Celsius (°C) and Fahrenheit (°F), press the DOWN button while in normal time display mode.
Maintenance
- Cleaning: Wipe the clock clean with a soft, dry cloth. Do not use abrasive cleaners or solvents.
- Battery Replacement: Replace batteries when the display becomes dim or functions become erratic. Always replace both batteries at the same time with new AAA batteries.
- Storage: If the clock will not be used for an extended period, remove the batteries to prevent leakage.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Display is blank or dim. | Batteries are low or incorrectly installed. | Replace batteries with new AAA batteries, ensuring correct polarity. |
| Alarm does not sound. | Alarm is not activated or set incorrectly. | Ensure the alarm icon (1 or 2) is visible on the display. Verify alarm time is set correctly. |
| Incorrect time/date. | Time/date was not set or reset after battery change. | Follow the "Setting Time and Date" instructions to reset. |
| Temperature reading seems inaccurate. | Clock is placed near a heat source or in direct sunlight. | Relocate the clock to an area with stable ambient temperature. |
Specifications
- Brand: SENCOR
- Model: SDC 2800 W
- Color: White
- Display Type: Digital
- Power Source: 2 x AAA Batteries (not included)
- Dimensions: 5.08 x 2.64 x 1.57 inches (12.9 x 6.7 x 4 cm)
- Item Weight: 4.8 ounces (137 grams)
- Special Features: Alarm, Date, Day of Week, Temperature Display (°C/°F), Backlight
- Material: Plastic
- Operation Mode: Electrical
Warranty and Support
For warranty information or technical support, please refer to the documentation provided with your purchase or contact Sencor customer service directly. Keep your proof of purchase for warranty claims.
For further assistance, visit the official Sencor website or contact their customer support channels.





