1. Introduktion
The ECOWITT WS3900 Wireless Weather Station is an advanced 7-in-1 solution designed for comprehensive and intelligent monitoring of local weather conditions. This system provides real-time data and forecasting capabilities, making it an essential tool for home weather enthusiasts and those who require precise environmental information.
The package includes a WS69 outdoor sensor array and a 7.5-inch LCD color display console. The outdoor sensor is solar-powered and measures temperature, humidity, wind speed, wind direction, rainfall, light intensity, and UV levels. The indoor console displays this data clearly and offers Wi-Fi connectivity for time synchronization and data upload to various cloud platforms, including Ecowitt.net, Weather Underground, and Weathercloud. It also supports integration with additional Ecowitt sensors for an expanded monitoring system.

Image: The ECOWITT WS3900 Wireless Weather Station, showing the outdoor 7-in-1 sensor array and the indoor 7.5-inch LCD color display console.
2. Pakkens indhold
- 1 x WS69 Outdoor Sensor Array (7-in-1)
- 1 x WS3900 Display Console (7.5-inch LCD Color)
- Mounting Hardware (U-bolts, mounting plate, nuts)
- Brugermanual
- DC Power Adapter for Console (optional, 3x AA batteries also supported)

Image: Detailed diagram of the WS69 outdoor sensor array, highlighting components such as the rain gauge, bubble level, solar panel, UV & Light sensor, wind speed sensor, thermo-hygrometer sensor, and wind vane. Also shows the battery compartment and reset button.
3. Opsætningsvejledning
3.1 Outdoor Sensor Installation (WS69)
- Udpakning og montering: Carefully remove all components from the packaging. Attach the wind cups and wind vane to the sensor array as per the assembly instructions.
- Batteri installation: The WS69 outdoor sensor requires 2 AA batteries (not included) for initial power and backup. Locate the battery compartment, insert the batteries, and close the cover securely. The sensor is primarily solar-powered once operational.
- Monteringssted: Choose an open location for the outdoor sensor, free from obstructions like trees or buildings, to ensure accurate readings for wind, rain, and sunlight. A pole or mast is recommended for optimal placement. The sensor can transmit data up to 100 meters (328 feet) to the console.
- Montering: Use the provided mounting hardware (U-bolts, mounting plate) to secure the sensor array to a pole or suitable structure. Ensure the sensor is level using the integrated bubble level for accurate rain and wind measurements.
- Orientering: Orient the wind vane correctly, typically pointing North, for accurate wind direction readings.

Image: The outdoor sensor array mounted on a pole, illustrating a suitable installation location for optimal performance.

Image: A diagram illustrating the 100-meter (328 feet) RF communication range between the outdoor sensor and the indoor display console, suitable for farm or large property monitoring.
3.2 Display Console Setup (WS3900)
- Tænder: The console can be powered by 3 AA batteries (not included) or the included DC power adapter. For continuous operation and backlight functionality, using the DC adapter is recommended.
- Sensorparring: Once powered on, the console will automatically search for and pair with the outdoor WS69 sensor. Ensure both devices are within range. The console will display outdoor data once connected.
- Wi-Fi-forbindelse:
- Download the Ecowitt app from your smartphone's app store.
- Follow the in-app instructions to connect your console to your home Wi-Fi network. This enables time synchronization and data upload to Ecowitt cloud, Weather Underground (WU), Weathercloud, or other custom servers.
- The Wi-Fi connection also allows for firmware updates via the web interface og viewing additional sensor data.
- Indledende indstillinger: Use the touch buttons on the console to set time, date, units (e.g., °C/°F, km/h/mph, mm/in), and other preferences. Refer to the console's button layout for navigation.

Billede: Et nærbillede view of the WS3900 console display, showing various weather parameters and the touch button layout at the bottom for navigation and settings.

Image: A diagram illustrating the Wi-Fi connection process, showing how the WS69 sensor communicates with the WS3900 console, which then uploads data to the Ecowitt cloud and other weather services via Wi-Fi, accessible through the Ecowitt app.
4. Betjeningsvejledning
4.1 Forstå skærmen
Det 7.5-tommer LCD-farvedisplay giver et omfattende overblikview af aktuelle og historiske vejrdata. Vigtige visningsområder omfatter:
- Udendørs data: Temperature, humidity, wind speed, wind direction, rainfall (daily, weekly, monthly, yearly), light, and UV index.
- Indendørs data: Temperature, humidity, and atmospheric pressure.
- Vejrudsigt: Icons indicating predicted weather conditions (sunny, cloudy, rainy, stormy, snowy, etc.) for the coming period.
- Tid og dato: Synchronized via Wi-Fi.

Billede: En detaljeret view of the WS3900 console display, labeling different sections such as outdoor humidity/temperature, wind speed/direction, rain rate, weather forecast, UVI/solar, indoor humidity/temperature, pressure, and time/date.
4.2 Console Buttons and Functions
The console features 8 touch buttons for navigation and settings:
| Knap | Fungere |
|---|---|
| SÆT | Enter setup mode, confirm settings. |
| TEMP | Toggle temperature units (°C/°F), view min/max temperature. |
| RAIN 1 / RAIN 2 | View different rainfall data (e.g., daily, weekly, monthly). |
| VIND | Toggle wind speed units (km/h, mph, m/s, knots, Beaufort), view wind gust. |
| + / - | Adjust values in setup mode, scroll through history. |
| LYS | Adjust backlight brightness (when powered by DC adapter). |
4.3 Vejrudsigt
After a period of data collection, the console will begin to generate weather forecasts for the upcoming days. These forecasts are based on changes in atmospheric pressure and other collected data. The forecast icons include:
- Solrig
- Delvis skyet
- Overskyet
- Regnfuld
- Stormfuld
- Snefyldt
- Kraftig regn

Image: The console display showing various weather forecast icons, such as sunny, partly cloudy, cloudy, stormy, snowy, and rainy, indicating predicted weather conditions.
4.4 Expanding Your System (Optional)
The WS3900 console can act as a gateway for other Ecowitt sensors, allowing you to monitor additional parameters. It supports receiving and displaying data from:
- 1 x WH40 Rain Gauge
- 8 channels of WN31/37/30/36 Temperature/Humidity Sensors
It also supports smart IOT linkage control with 16 channels of WFC01 and AC1100 devices. Note that some sensors (WH51/WN34/WH57/WH55/WH45/WH43/WH41) cannot be displayed directly on the console screen but can be viewed via the Ecowitt app or web interface.

Image: An illustration of the Ecowitt smart home ecosystem, showing various sensors (e.g., WS3800, WH55, WN31, WH40, WN34, WH36, WFC01) integrated with a central gateway, demonstrating the expandability of the system.
5. Vedligeholdelse
- Rengøring af udendørs sensorer: Periodically clean the rain gauge funnel and wind cups to prevent debris buildup, which can affect accuracy. Use a soft, damp klæde.
- Udskiftning af batteri: Replace the AA batteries in the outdoor sensor and console as needed. Although the outdoor sensor is solar-powered, batteries provide backup during prolonged periods of low light.
- Firmwareopdateringer: Regularly check for firmware updates via the Ecowitt app or webwebstedet for at sikre optimal ydeevne og adgang til nye funktioner.
- Sensorkalibrering: If you suspect inaccuracies, some sensors may allow for calibration adjustments through the console settings or the Ecowitt app. Refer to the detailed online manual for specific calibration procedures.
6. Fejlfinding
| Problem | Mulig løsning |
|---|---|
| No outdoor data on console. |
|
| Inaccurate readings (wind, rain). |
|
| Problemer med Wi-Fi-forbindelse. |
|
| Console display is dim or off. |
|
7. Specifikationer
| Feature | Detalje |
|---|---|
| Modelnummer | WS3900AE |
| Outdoor Sensor (WS69) | 7-in-1: Temperature, Humidity, Wind Speed, Wind Direction, Rain, Light, UV |
| Udendørs sensorstrøm | Solar powered with 2 x AA battery backup (not included) |
| Displaykonsol | 7.5-tommer LCD-farveskærm |
| Konsol Power | DC Adapter (included) or 3 x AA batteries (not included) |
| Forbindelse | Wi-Fi (2.4GHz), RF (100m/328ft transmission range) |
| Temperatur nøjagtighed | 0.5 °C til 1 °C |
| Materiale | Plast |
| Dimensioner (pakke) | 44.1 x 26.4 x 17 cm; 1.94 kg |
| Fabrikant | ECOWITT |
| Oprindelse | Kina |

Image: Technical drawing showing the dimensions of both the WS69 outdoor sensor array and the WS3900 display console in centimeters and inches.
8. Garanti og support
For garantioplysninger og teknisk support henvises til den officielle ECOWITT webwebstedet eller kontakt deres kundeservice direkte. Gem din købskvittering som købsbevis i tilfælde af garantikrav.
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