1. Introduktion
Thank you for choosing the MEBUS Model 25799 Radio-Controlled Alarm Clock. This compact and versatile device offers precise timekeeping through radio control, dual alarm functions, an indoor temperature display, and a convenient backlight. This manual will guide you through its features and operation to ensure optimal performance.

Billede 1: Overview of the MEBUS Model 25799 alarm clock, illustrating its main features such as dual alarms, display illumination, and radio-controlled time synchronization.
2. Pakkens indhold
Kontroller venligst, at alle varer er til stede:
- MEBUS Model 25799 Radio-Controlled Alarm Clock
- Brugervejledning (dette dokument)
Note: 2x AAA batteries are required and not included in the package.
3. Produktet er slutview
Familiarize yourself with the alarm clock's display and control buttons.

Billede 2: Forside view of the MEBUS Model 25799 alarm clock, showing the digital display and control buttons.
3.1 Displayelementer
- Tidsvisning: Aktuel tid i 12- eller 24-timers format.
- Visning af dato/dag: Current month, day, and day of the week.
- Temperaturvisning: Indoor temperature in Celsius (°C) or Fahrenheit (°F).
- Alarmindikatorer: Icons for Alarm 1 and Alarm 2 activation.
- Radio Control Indicator: Icon showing radio signal reception status.
3.2 Betjeningsknapper
- SNOOZE/LIGHT-knap (øverst): Activates snooze function during an alarm; illuminates the display for 5 seconds.
- SET Buttons (Left & Right): Used to set Alarm 1 and Alarm 2 respectively.
- MODE knap: Cycles through display modes and enters setting modes.
- ▲ (Up) Button: Adjusts values upwards during setting; changes temperature unit.
- ▼ (Down) Button: Adjusts values downwards during setting; changes time zone.
4. Opsætning
4.1 Batteriinstallation
- Find batteridækslet på bagsiden af vækkeuret.
- Fjern dækslet.
- Insert 2 new AAA batteries, observing the correct polarity (+ and - markings).
- Sæt batterirummets dæksel på igen.

Billede 3: Bagside view of the alarm clock, indicating the battery compartment for AAA batteries.
4.2 Initial Radio Signal Reception (DCF 77)
After battery installation, the clock will automatically attempt to receive the DCF 77 radio signal to set the time. This process may take several minutes. Ensure the clock is placed away from electronic devices that may cause interference.
- A flashing radio tower icon indicates the clock is searching for the signal.
- A solid radio tower icon indicates successful signal reception and time synchronization.
- If the signal is not received within 10 minutes, the clock will proceed with default settings. You can manually set the time or try placing the clock in a different location.

Image 4: Visual representation of the DCF 77 radio signal reception for automatic time setting, including summer and winter time adjustments.
5. Betjeningsvejledning
5.1 Manuel indstilling af tid og dato
If radio signal reception is unavailable or you prefer manual setting:
- Tryk og hold på MODE Tryk på knappen i cirka 3 sekunder for at gå ind i tidsindstillingstilstanden. Timecifrene blinker.
- Brug ▲ or ▼ knapper for at justere timen.
- Trykke MODE again to confirm the hour and move to minutes. Adjust minutes with ▲ or ▼.
- Fortsæt med at trykke MODE to cycle through and set year, month, day, 12/24-hour format, and day of week language (7 languages available).
- Trykke MODE one last time or wait 15 seconds for the settings to be saved and exit the setting mode.
5.2 Indstilling af tidszone
To adjust for different time zones:
- I normal tidsvisningstilstand skal du trykke på ▼ (Down) button repeatedly to cycle through time zone offsets.
- The display will show the offset (e.g., +1, -2). Select the desired time zone.
5.3 Indstilling af alarmer (Alarm 1 og Alarm 2)
Uret har to uafhængige alarmer.
- Tryk på SÆT button (left for Alarm 1, right for Alarm 2) once to display the current alarm time.
- Press and hold the respective SÆT -knappen i cirka 3 sekunder. Alarmtimecifrene blinker.
- Brug ▲ or ▼ knapper for at justere alarmtiden.
- Tryk på SÆT button again to confirm the hour and move to minutes. Adjust minutes with ▲ or ▼.
- Tryk på SÆT button again to confirm the alarm time. The alarm icon will appear on the display, indicating it is active.
- For at deaktivere en alarm skal du trykke på den tilsvarende knap SÆT button once to display the alarm time, then press it again. The alarm icon will disappear.
5.4 Snooze -funktion
When an alarm sounds:
- Tryk på den store SNOOZE / LYS button on top of the clock. The alarm will pause and sound again after a few minutes (snooze interval).
- For at stoppe alarmen helt, tryk på en hvilken som helst anden knap (f.eks. MODE, ▲, ▼, or the respective SÆT knap).
5.5 Temperaturvisning
The clock displays the indoor temperature.
- For at skifte mellem Celsius (°C) og Fahrenheit (°F), tryk på ▲ (Up) button in normal time display mode.
5.6 Displaybaggrundsbelysning
To temporarily illuminate the display:
- Tryk på SNOOZE / LYS button on top of the clock. The display will light up for approximately 5 seconds.
6. Vedligeholdelse
6.1 Rengøring
- Tør uret af med en blød, tør klud.
- Brug ikke slibende rengøringsmidler eller opløsningsmidler.
6.2 Udskiftning af batteri
- When the display dims or functions become erratic, replace the batteries.
- Følg trinene til batteriinstallation i afsnit 4.1.
- Bortskaf gamle batterier ansvarligt i henhold til lokale regler.
7. Fejlfinding
| Problem | Mulig årsag | Løsning |
|---|---|---|
| Uret viser ingenting. | Batterierne er døde eller isat forkert. | Udskift batterierne, og sørg for korrekt polaritet. |
| Tiden er forkert eller indstilles ikke automatisk. | Poor radio signal reception (DCF 77). | Move the clock to a location with better signal reception (e.g., near a window, away from electronics). Manually set the time if necessary. |
| Alarmen lyder ikke. | Alarmen er ikke aktiveret. | Ensure the alarm icon is visible on the display. Re-set the alarm if needed. |
| Display backlight is too dim or not working. | Lav batteristrøm. | Udskift batterierne. |
8. Specifikationer

Image 5: Key specifications of the alarm clock, including its compact size, light weight, and battery requirements.
| Feature | Detalje |
|---|---|
| Modelnummer | 25799 |
| Dimensioner (L x B x H) | 6.9 x 3.81 x 9.7 cm |
| Vægt | 105 g |
| Materiale | Plast |
| Strømkilde | Battery-powered (2x AAA, not included) |
| Display Type | Digital |
| Farve | Sort |
| Særlige funktioner | Temperature Display, Dual Alarms, Backlight, Snooze, Radio-Controlled Time (DCF 77) |
9. Garanti og support
For garantioplysninger eller teknisk support henvises til den dokumentation, der blev leveret ved køb, eller kontakt din forhandler. Gem din købsbevis i tilfælde af garantikrav.





