Einführung
This manual provides detailed instructions for the setup, operation, and maintenance of your TFA 98.1087 Digital Radio-Controlled Alarm Clock. This compact and functional alarm clock features a radio-controlled time display, two alarm settings with snooze function, a thermometer, and a calendar. Please read this manual carefully to ensure proper use and to fully utilize all features of your device.
Hauptmerkmale:
- Radio-controlled time for automatic and precise synchronization.
- Two independent alarm settings with different sounds.
- Snooze function for temporary alarm interruption.
- Integrated thermometer displaying temperature in Celsius or Fahrenheit.
- Calendar display with day of the week in multiple languages.
- Hintergrundbeleuchtung für einfache viewbei schlechten Lichtverhältnissen.
- Compact design, ideal for home or travel.
Aufstellen
1. Einlegen der Batterie
The TFA 98.1087 alarm clock requires 2 AAA batteries (included). Follow these steps to install them:
- Suchen Sie das Batteriefach auf der Rückseite des Weckers.
- Open the battery compartment cover by sliding it down or lifting the latch.
- Legen Sie zwei AAA-Batterien ein und achten Sie dabei auf die richtige Polarität (+ und -), wie im Batteriefach angegeben.
- Schließen Sie den Batteriefachdeckel fest.

Bild: Hinteren view of the alarm clock showing the battery compartment. Ensure batteries are inserted with correct polarity.

Bild: Abgewinkeltes Heck view of the alarm clock, highlighting the battery compartment and the integrated stand for stable placement.
2. Erste Zeitsynchronisation (Funksteuerung)
Upon battery installation, the alarm clock will automatically attempt to synchronize with the DCF radio signal (Frankfurt, Germany) to set the correct time, date, and day of the week. This process may take a few minutes. For best reception, place the clock near a window and away from electronic devices that might cause interference.
- A radio signal icon will appear on the display to indicate successful reception.
- If the signal is weak or unavailable, the clock can be set manually.
Bedienungsanleitung
1. Manual Time and Date Setting
If radio control is not desired or unavailable, you can set the time and date manually:
- Halten Sie die MODUS Drücken Sie die Taste, bis die Zeitanzeige zu blinken beginnt.
- Verwenden Sie die UP (▲) Und RUNTER (▼) buttons to adjust the hours, then press MODUS zur Bestätigung.
- Wiederholen Sie dies für Minuten, Jahr, Monat und Tag.
- Drücken MODUS erneut, um den Einstellungsmodus zu verlassen.

Bild: Front view of the alarm clock, showing the digital display and control buttons for setting time and alarms.
2. Alarme einstellen (Alarm 1 und Alarm 2)
Die Uhr verfügt über zwei unabhängige Wecker. So stellen Sie einen Wecker:
- Drücken Sie die ALARM Taste einmal zu view Alarm 1. Drücken Sie erneut für Alarm 2.
- Während viewing the desired alarm time, press and hold the ALARM Drücken Sie die Taste so lange, bis die Alarmzeit blinkt.
- Verwenden Sie die UP (▲) Und RUNTER (▼) buttons to adjust the hours, then press ALARM zur Bestätigung.
- Wiederholen Sie dies minutenlang.
- Drücken ALARM erneut, um den Einstellungsmodus zu verlassen.
- Zum Aktivieren/Deaktivieren eines Alarms drücken Sie die Taste ALARM button repeatedly until the alarm icon (bell symbol) for Alarm 1 or Alarm 2 appears/disappears on the display.
3. Schlummerfunktion
Wenn ein Alarm ertönt, drücken Sie die große Taste. SNOOZE / LICHT button on top of the clock to temporarily silence the alarm. The alarm will sound again after approximately 4-5 minutes.
4. Den Alarm stoppen
To permanently stop an alarm when it is sounding, press any button on the front panel (e.g., ALARM, MODUS, UP, RUNTER) except the SNOOZE / LICHT Drücken Sie diese Taste. Der Alarm wird für den nächsten Tag zurückgesetzt.
5. Hintergrundbeleuchtung
Drücken Sie die große SNOOZE / LICHT button on top of the clock to illuminate the display for approximately 5 seconds, allowing for easy viewim Dunkeln gehen.
6. Temperaturanzeige
The clock displays the ambient temperature. To switch between Celsius (℃) and Fahrenheit (℉), press the ℃ / ℉ button (if available, or check manual for specific button). If no dedicated button, it might be part of the MODE settings.
Note: The provided product details indicate "Indicador de temperatura" (Temperature indicator) but do not specify a dedicated button for unit change. This function is typically found within the MODE settings or a specific C/F button.
7. Dualzeit-Einstellung
The clock supports a dual time function, allowing you to display a second time zone. Consult the full product manual for specific instructions on setting and switching to dual time mode, as this often involves a combination of button presses.

Bild: Seite view of the alarm clock, illustrating its compact profile and stable integrated stand.
Wartung
1. Batteriewechsel
When the display dims or the clock functions become erratic, it is time to replace the batteries. Follow the battery installation steps in the "Setup" section. Always replace both batteries at the same time with new AAA alkaline batteries. Dispose of old batteries responsibly according to local regulations.
2. Reinigung
Clean the alarm clock with a soft, dry cloth. Do not use abrasive cleaners or solvents, as these can damage the casing or display. Avoid exposing the device to excessive moisture.
Fehlerbehebung
| Problem | Mögliche Ursache | Lösung |
|---|---|---|
| Das Display ist leer oder dunkel. | Niedrige oder leere Batterien. | Durch neue AAA-Batterien ersetzen. |
| Die Uhrzeit ist falsch oder wird nicht automatisch eingestellt. | Weak or no radio signal reception. |
|
| Der Alarm ertönt nicht. | Der Alarm ist nicht aktiviert oder falsch eingestellt. |
|
| Die Tasten reagieren nicht oder lassen sich nur schwer drücken. | General wear or internal issue. |
|
| Alarm volume is too loud/quiet. | Fixed volume setting. | The alarm volume is generally fixed. Some users have reported modifying the speaker opening on the back with a small piece of cloth to dampen the sound if it's too loud. This is an unofficial modification and should be done with caution. |
Technische Daten
- Modellnummer: 98.1087
- Marke: TFA
- Abmessungen: 4.6 x 7.8 x 8 cm (1.8 x 3.1 x 3.1 Zoll)
- Gewicht: 160 g (0.35 Pfund)
- Energiequelle: 2 x AAA-Batterien (im Lieferumfang enthalten)
- Anzeigetyp: Digitales
- Material: Plastik
- Besondere Merkmale: Alarm, Temperature Indicator, Snooze Function, Radio-Controlled Time
- Farbe: Schwarz
Garantieinformationen
Specific warranty terms and conditions for the TFA 98.1087 Digital Alarm Clock may vary by region and retailer. Please refer to the warranty card included with your product or contact your point of purchase for detailed information regarding warranty coverage, duration, and claims procedures. Keep your proof of purchase for warranty purposes.
Kundenservice
For further assistance, technical support, or inquiries not covered in this manual, please visit the official TFA website or contact their customer service department. Contact details can typically be found on the manufacturer's packaging or webWebsite.
Hersteller: TFA Dostmann GmbH & Co. KG





