1. Introduction
Thank you for purchasing the Weytoll Wireless Weather Station. This device is designed to provide accurate indoor and outdoor temperature and humidity readings, along with a weather forecast, time, date, and alarm functions. With its clear color display and wireless sensor technology, it helps you stay informed about your environment.

2. Key Features
- Indoor/Outdoor Temperature & Humidity: Monitors current, maximum, and minimum temperature and humidity levels for both indoor and outdoor environments.
- Wireless Sensor Technology: Utilizes advanced RF sensor technology for precise data collection and quick transmission. Supports up to 3 wireless outdoor sensors (one typically included).
- Color LCD Touch Screen: Large, vibrant display with adjustable backlight levels (high, medium, low, off) for easy readability.
- Weather Forecast: Provides a personalized weather forecast (sunny, cloudy, overcast, rain, snow, half sunny, ice alert) based on barometric pressure trends.
- Time & Calendar: Displays time in 12/24-hour format, date, and day of the week (perpetual calendar up to year 2099). Day of week available in multiple languages (English, German, Italian, French, Spanish, Dutch, Danish).
- Alarm Clock with Snooze: Features dual daily alarms with an adjustable snooze function (5 minutes or 5-120 minutes depending on model).
- Comfort Level Display: Indicates indoor comfort levels (e.g., DRY, COM, WET) based on temperature and humidity.
- Barometric Pressure: Measures atmospheric pressure and displays historical trends over 12 or 24 hours.
- Alert Functions: Includes outdoor temperature upper/lower limit alerts and frost warnings.
- Power Options: Main unit can be powered by USB cable or AA/AAA batteries (for backup). Outdoor sensor uses AA batteries.
- Flexible Installation: Designed for both wall mounting and tabletop placement.

3. Package Contents
Please check the package carefully to ensure all items are present and undamaged:
- 1 x Wireless Weather Station (Main Unit)
- 1 x Wireless Outdoor Sensor (Transmitter)
- 1 x USB Power Cable
- 1 x User Manual
Note: Batteries (AA/AAA) are typically not included and must be purchased separately.

4. Specifications
| Feature | Specification |
|---|---|
| Theory | Thermometer Hygrometer |
| Display Type | DIGITAL |
| Max Measuring Temperature | 49°C & Under |
| Style | Wall Hanging |
| Use | Household |
| Display Size | 1.9 Inches & Under (some models feature larger screens) |
| Indoor Temperature Range | 0℃ (32℉) ~ 50℃ (122℉) / -9.9°C (14.2°F) ~ 50°C (122°F) |
| Outdoor Temperature Range | -40℃ (-40℉) ~ 70℃ (158℉) / -20℃ (-4℉) ~ 60℃ (140℉) |
| Humidity Range | 20%RH ~ 95%RH |
| Wireless Transmission Range | 60 meters (open area), up to 100 meters for some models |
| Wireless Sensor Support | Up to 3 channels |
| Waterproof Level (Outdoor Sensor) | IPX4 |
| Power Supply (Main Unit) | USB DC5V (500mA/1.2A) or 2x AA/AAA batteries (backup) |
| Power Supply (Outdoor Sensor) | 2x AA batteries |
| Barometric Pressure Range | 600hPa/mb~1100hPa/mb (17.72~32.50 inHg) |
| Snooze Function | 5 minutes (adjustable 5-120 minutes on some models) |
| Main Unit Dimensions (approx.) | 161x115x32mm (FJ3551A), 160x116x33mm (FJ3383F), 207x135x24mm (CJ6612RF-A5), 16.5x12x8cm (3396C), 16.7x12.9x3cm (FJ3373) |
| Outdoor Sensor Dimensions (approx.) | 96x50x34mm (FJ3383F), 125x46x25mm (CJ6612RF-A5), 97x50x30mm (FJ3362G), 9.6x5x3.4cm (FJ3373) |
Note: Specifications may vary slightly between different models (e.g., FJ3551A, FJ3383F, CJ6612RF-A5, 3396C, FJ3373). Refer to your specific model's packaging for exact details.
5. Setup Guide
5.1. Powering the Devices
- Outdoor Sensor: Open the battery compartment on the back of the wireless outdoor sensor. Insert 2x AA batteries, ensuring correct polarity (+/-). Close the compartment.
- Main Unit:
a. Battery Power (Backup): Open the battery compartment on the back of the main unit. Insert 2x AA or 3x AAA batteries (depending on model), ensuring correct polarity. Close the compartment.
b. USB Power (Recommended for continuous use): Connect the provided USB cable to the DC 5V power interface on the main unit and plug the other end into a USB power adapter (not included) or a USB port.
The main unit will power on and perform an initial self-check. The display will light up.

5.2. Sensor Placement
Place the outdoor sensor in a location that provides accurate readings and is within the transmission range (60-100 meters) of the main unit. Ideal locations are:
- Out of direct sunlight to prevent inaccurate temperature readings.
- Protected from heavy rain or snow (despite IPX4 rating, prolonged exposure can affect performance).
- Away from heat sources (e.g., vents, exhaust fans) or cold sources (e.g., air conditioning units).
- Ensure there are no major obstructions (thick walls, large metal objects) between the sensor and the main unit that could interfere with the wireless signal.
The sensor can be wall-mounted or placed on a flat surface using its stand.

5.3. Initial Synchronization
The main unit and outdoor sensor should automatically synchronize once both are powered on. If the outdoor readings are not displayed, press the 'CH' button on the main unit to cycle through channels or initiate a manual search for the sensor. Ensure the sensor is within range.
5.4. Setting Time, Date, and City
Refer to the detailed instructions in the included User Manual for your specific model to set the time, date, and city for sunrise/sunset calculations. This typically involves pressing a 'SET' or 'MODE' button and using 'UP'/'DOWN' or 'CH' buttons to adjust values.
Video demonstrating basic setup and backlight adjustment for the weather station.
6. Operating Instructions
6.1. Reading the Display
The color LCD display provides a wealth of information at a glance:
- Indoor/Outdoor Temperature & Humidity: Clearly labeled sections show current readings.
- Weather Forecast Icons: Visual icons (sun, clouds, rain, snow) indicate the predicted weather for the next 12-24 hours.
- Time & Date: Digital clock and calendar information.
- Comfort Level: An indicator (e.g., DRY, COM, WET) shows the indoor comfort status.
- Barometric Pressure: Current pressure and a historical trend graph.
- Moon Phase/Tide: Displays the current moon phase and tide information (on applicable models).
- Sunrise/Sunset: Times for your selected city (on applicable models).

6.2. Adjusting Backlight
If powered by USB, the backlight can be adjusted. Press the dedicated backlight button (often labeled with a lightbulb icon) to cycle through brightness levels (High, Medium, Low, Off). If running on batteries, the backlight may only activate briefly when a button is pressed to conserve power.
6.3. Alarm and Snooze Functions
To set alarms, typically press the 'ALARM' or 'MODE' button until the alarm setting appears. Use 'UP'/'DOWN' buttons to set the desired alarm time. Press 'SET' to confirm. To activate/deactivate an alarm, press the 'ALARM' button. When an alarm sounds, press the 'SNOOZE' button (often the 'SNOOZE/BACKLIGHT' button) for a temporary silence, or any other button to turn it off completely.
6.4. Temperature/Humidity Alerts
Some models allow you to set upper and lower limits for outdoor temperature and humidity. If the readings exceed these limits, an alert will sound, and the corresponding icon will flash. Consult your manual for specific steps to set these alerts.
6.5. Switching Units
To switch between Celsius (°C) and Fahrenheit (°F), locate the '°C/°F' button (or a similar setting in the menu). Similarly, barometric pressure units can often be switched between hPa/mb and inHg.
6.6. Multiple Outdoor Sensors
If you have additional outdoor sensors (up to 3 supported), press the 'CH' (Channel) button on the main unit to cycle through the readings from each connected sensor. This allows you to monitor different locations simultaneously.

7. Maintenance
- Cleaning: Wipe the main unit and sensor with a soft, damp cloth. Do not use abrasive cleaners or solvents.
- Battery Replacement: Replace batteries in both the main unit (if used as primary power or backup) and the outdoor sensor when the low battery indicator appears on the display. Ensure correct battery type and polarity.
- Sensor Protection: While the outdoor sensor is IPX4 waterproof, protecting it from extreme weather conditions (e.g., heavy downpours, direct prolonged sunlight, freezing rain) can extend its lifespan.
- Storage: If storing the device for an extended period, remove all batteries to prevent leakage.
8. Troubleshooting
- No outdoor temperature/humidity reading:
- Ensure the outdoor sensor has fresh batteries and is powered on.
- Check that the outdoor sensor is within the effective transmission range of the main unit.
- Reduce obstructions between the sensor and the main unit.
- Press the 'CH' button on the main unit to re-establish connection or cycle through channels.
- Try resetting both units by removing batteries, waiting a few minutes, and then reinserting them.
- Inaccurate readings:
- Ensure the outdoor sensor is not in direct sunlight, near heat sources, or in a location with poor air circulation.
- Compare readings with another reliable thermometer/hygrometer to verify.
- Replace batteries in both units.
- Display is dim or blank:
- If using USB power, ensure the cable is securely connected and the power source is active.
- If using batteries, replace them with fresh ones.
- Adjust the backlight settings using the dedicated button.
- Alarm not sounding:
- Ensure the alarm is activated (check for an alarm icon on the display).
- Verify the alarm time is set correctly.
- Check battery levels.
9. User Tips
- For consistent display brightness, always use the USB power cable for the main unit. Batteries are best for backup during power outages or for temporary placement.
- When placing the outdoor sensor, consider a north-facing wall or under an eave to shield it from direct sun and rain, ensuring more accurate temperature readings.
- If you experience connectivity issues, try moving the main unit or sensor slightly, or ensure they are not too close to other electronic devices that might cause interference.
- Regularly check the battery indicator to avoid unexpected power loss and ensure continuous data monitoring.
- Take advantage of the customizable alerts for outdoor temperature to be notified of frost conditions or extreme heat.
10. Warranty and Support
For warranty information, technical support, or service inquiries, please refer to the contact details provided by your retailer or the manufacturer. Keep your purchase receipt as proof of purchase.


