1. Introducció
The TFA Dostmann Spring Weather Station provides comprehensive weather information for both indoor and outdoor environments. Featuring a vibrant colour display with animated weather symbols, it offers intuitive insights into local weather development. This compact and user-friendly device includes a wireless outdoor sensor for accurate external temperature and humidity readings, alongside internal sensors for monitoring indoor climate. Its integrated radio-controlled clock ensures precise timekeeping and includes alarm functions.

Figure 1: TFA Dostmann Spring Weather Station Base Unit
2. Contingut de la caixa
Please check the package contents upon unpacking to ensure all components are present:
- 1 x Spring Wireless Weather Station (Base Unit)
- 1 x Thermal Hygrotransmitter (Outdoor Sensor)
- 1 x adaptador de corrent de xarxa
- 1 x Manual d'instruccions (aquest document)
Nota: Batteries are not included. The base station requires 3 x 1.5 V AAA batteries, and the outdoor sensor requires 2 x 1.5 V AA batteries.

Figure 2: Wireless Thermal Hygrotransmitter (Outdoor Sensor)
3. Informació de seguretat
To ensure safe operation and prolong the life of your device, please observe the following safety guidelines:
- Do not expose the base unit to extreme temperatures, direct sunlight, or high humidity.
- The outdoor sensor is weather-resistant but should be placed in a sheltered location to protect it from direct rain and prolonged sun exposure for optimal performance and longevity.
- Use only the specified battery types and ensure correct polarity when inserting.
- No barregeu piles velles i noves, o diferents tipus de piles.
- Remove depleted batteries promptly to prevent leakage.
- Mantingueu el dispositiu i les bateries fora de l'abast dels nens.
- No intenteu desmuntar ni reparar el dispositiu vosaltres mateixos. Encarregueu tot el manteniment a personal qualificat.
- Netegeu el dispositiu amb un suau, damp tela. No utilitzeu netejadors abrasius ni dissolvents.
4. Configuració
4.1. Alimentació dels dispositius
- Sensor exterior: Open the battery compartment on the back of the thermal hygrotransmitter. Insert 2 x 1.5 V AA batteries, observing the correct polarity (+/-). Close the compartment securely.
- Unitat base:
- Funcionament amb bateria: Open the battery compartment on the back of the base unit. Insert 3 x 1.5 V AAA batteries, observing the correct polarity (+/-). Close the compartment. In battery mode, the display backlight will activate briefly when a button is pressed.
- Mains Power Operation: Connect the provided mains power adapter to the DC input port on the base unit and plug it into a power outlet. When powered by the adapter, the display backlight can be permanently activated and adjusted to two brightness levels. The display can also be switched off completely.
4.2. Col·locació del sensor
For accurate outdoor temperature and humidity readings, place the wireless outdoor sensor in a location that is:
- Fora de la llum solar directa.
- Protected from direct rain and snow.
- Ben ventilat.
- Within the maximum transmission range of 60 meters from the base unit. Avoid large metal objects or thick walls between the sensor and the base unit, as these can interfere with the signal.
4.3. Initial Synchronization and Radio-Controlled Clock
Once both the base unit and outdoor sensor are powered on, they will automatically attempt to synchronize. The outdoor temperature and humidity should appear on the base unit's display within a few minutes. The base unit will also automatically search for the DCF 77 radio signal to set the time and date. This process may take several minutes or hours depending on your location and signal strength.

Figure 3: DCF77 Radio Signal Coverage Map (Approximate)
If the radio-controlled clock does not set automatically, you may need to manually set the time or adjust the time zone. Refer to the operating instructions for manual time setting.
5. Instruccions de funcionament
5.1. Mostra mésview
The colour display is divided into several sections, providing a clear overview of all relevant data:
- Temperatura i humitat exteriors: Displays readings from the wireless outdoor sensor. Includes trend indicators.
- Temperatura i humitat interiors: Displays readings from the base unit's internal sensors. Includes trend indicators.
- Hora i calendari: Shows the current time (radio-controlled), date, and day of the week.
- Pronòstic del temps: Animated weather symbols indicate the forecast for the next 12 hours based on air pressure changes.
- Punt de rosada: Indicates the dew point temperature.
- Alarmes de temperatura: Indicators for set temperature alarms (indoor/outdoor).

Figura 4: Detallada View of the Weather Station Display
5.2. Previsió meteorològica
The weather station provides a local weather forecast for the next 12 hours based on changes in atmospheric pressure. The animated symbols (e.g., sunny, partly cloudy, cloudy, rainy, snowy) visually represent the predicted weather conditions. Note that this is a local forecast based on your immediate environment and may differ from regional forecasts.
5.3. Radio-Controlled Clock and Alarm
The integrated radio-controlled clock automatically synchronizes with the DCF 77 signal, ensuring highly accurate timekeeping. It displays the current time and date. You can manually adjust the time zone if needed. The clock also features an alarm function with a snooze option, making it suitable for use as an alarm clock.
- Configuració d'alarma: Use the "ALARM" button to enter alarm setting mode. Use the adjustment buttons to set the desired alarm time.
- Activació de la posposició: When the alarm sounds, press the "SNOOZE" button to temporarily silence it. The alarm will sound again after a few minutes.
5.4. Temperature and Humidity Alarms
The weather station allows you to set high and low temperature alarms for both indoor and outdoor readings. When the temperature exceeds or falls below your set thresholds, an audible alarm will sound, and an indicator will flash on the display. Use the "ALERTS" button to configure these alarms.
6. Manteniment
- Neteja: Netegeu la pantalla i casing with a soft, lint-free cloth. For stubborn marks, slightly dampen the cloth with water. Do not use abrasive cleaners, alcohol, or chemical solvents.
- Substitució de la bateria: Replace batteries in both the base unit and outdoor sensor when the low battery indicator appears on the display, or when performance degrades. Always replace all batteries in a device at the same time.
- Emmagatzematge: Si guardeu el dispositiu durant un període prolongat, traieu totes les piles per evitar fuites. Guardeu-lo en un lloc fresc i sec.
7. Solució De Problemes
| Problema | Causa possible | Solució |
|---|---|---|
| No hi ha lectura de temperatura/humitat exterior. |
|
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| No s'ajusta l'hora controlada per ràdio. |
|
|
| Display is dim or blank (on battery power). |
|
|
8. Especificacions tècniques
| Número de model | 35.1129.01 |
| Dimensions (Base Unit) | 210 x 26 (60) x 140 mm (L x W x H) |
| Pes | 348 g |
| Rang de temperatura interior | De 0 °C a +50 °C (de 32 °F a 122 °F) |
| Interval de temperatura exterior | -40 °C a +60 °C (-40 °F a 140 °F) |
| Gamma d’humitat | 1% a 99% HR |
| Freqüència de transmissió | 433 MHz |
| Interval de transmissió màxim | 60 metres (zona oberta) |
| Power Supply (Base Unit) | Mains power adapter (included) or 3 x 1.5 V AAA batteries (not included) |
| Font d'alimentació (sensor exterior) | 2 piles AA de 1.5 V (no incloses) |
| Ràdio Rellotge | DCF 77 signal |

Figure 5: Dimensions of the Weather Station Base Unit
9. Garantia i Suport
Specific warranty details for this product are not provided in the available information. For warranty claims, technical support, or service inquiries, please contact the retailer where you purchased the product or refer to the official TFA Dostmann weblloc web amb informació de contacte i recursos de suport.
TFA Dostmann is a German family business specializing in high-quality weather and measuring technology.





