1. Introduction
This manual provides detailed instructions for the setup, operation, and maintenance of your HUIOP FanJu FJ3373 Digital Weather Station. Please read this manual thoroughly before using the device to ensure proper function and longevity.
2. Product Overview
The FanJu FJ3373 is a multi-functional digital weather station designed to provide comprehensive environmental data. It features an LCD display for weather forecasts, indoor/outdoor temperature and humidity, barometric pressure trends, moon phase, and also functions as a digital alarm clock with a perpetual calendar.
2.1 Components
- FanJu FJ3373 Main Weather Station Unit
- Wireless Outdoor Sensor
- USB Power Cord
- User Manual (Multi-language)
2.2 Key Features
- LCD Display: Clear display of weather information, time, date, and alarm settings.
- Weather Forecast: Displays predicted weather conditions.
- Indoor/Outdoor Temperature & Humidity: Monitors current conditions with high accuracy.
- Barometric Pressure Trend: Indicates changes in atmospheric pressure.
- Comfort Level Indicator: 5 levels of indoor comfort based on temperature and humidity.
- Digital Alarm Clock: With snooze function.
- Perpetual Calendar: Up to the year 2099, with day of the week in 7 selectable languages.
- Moon Phase Display: Shows current moon phase.
- Wireless Outdoor Sensor: 433.92 MHz RF transmission, 60m range in open areas.
- USB Power Option: For continuous operation of the main unit.
Figure 1: Front view of the main weather station unit and the wireless outdoor sensor.
3. Setup
3.1 Unpacking and Powering the Main Unit
- Carefully remove all components from the packaging.
- Option 1 (USB Power): Connect the provided USB power cord to the DC 5V port on the back of the main unit. Plug the other end into a compatible USB power adapter (not included) or a USB port.
- Option 2 (Battery Power): Open the battery compartment on the back of the main unit. Insert 2 x AA batteries (not included), observing the correct polarity (+/-).
3.2 Installing Batteries in the Wireless Sensor
- Open the battery compartment on the back of the wireless outdoor sensor.
- Insert 2 x AA batteries (not included), observing the correct polarity (+/-).
- Close the battery compartment securely.
Figure 2: Back view of the main unit showing power input and controls, alongside the wireless sensor.
3.3 Pairing the Wireless Sensor
Upon initial power-up, the main unit will automatically attempt to connect with the outdoor sensor. Ensure the sensor is within range (up to 60 meters in open areas) and has fresh batteries. If connection is not established:
- Press and hold the 'CHANNEL' button on the main unit for 3 seconds to initiate a manual search for the sensor.
- The outdoor temperature and humidity display on the main unit will flash, indicating it is searching.
- Once connected, the outdoor readings will appear steadily on the display.
3.4 Initial Time and Date Settings
- Press and hold the 'MODE' button for 3 seconds to enter time setting mode.
- The hour digit will flash. Use the 'UP' or 'DOWN' buttons to adjust the hour.
- Press 'MODE' again to confirm the hour and move to the minute setting. Repeat the adjustment process.
- Continue pressing 'MODE' to cycle through year, month, and day settings, adjusting each with 'UP' or 'DOWN'.
- Press 'MODE' one last time to exit the setting mode.
3.5 Language and Unit Selection
- Temperature Units: Briefly press the 'UP' button to switch between Celsius (°C) and Fahrenheit (°F).
- Time Format: Briefly press the '12/24' button to switch between 12-hour and 24-hour time formats.
- Day of Week Language: In time setting mode (see 3.4), after setting the date, you can select the day of the week language (English, German, Italian, French, Spanish, Dutch, Danish) using the 'UP' or 'DOWN' buttons.
4. Operating Instructions
4.1 Understanding the Display
The LCD screen is divided into several sections displaying various information:
- Top Left: Outdoor Temperature and Humidity
- Top Right: Indoor Temperature and Humidity
- Middle: Weather Forecast Icons, Moon Phase
- Bottom: Time, Date, Day of Week, Alarm Status, Barometric Pressure Trend
4.2 Weather Forecast Display
The weather station predicts weather conditions for the next 12-24 hours based on barometric pressure changes. The forecast icons include Sunny, Partly Cloudy, Cloudy, Rainy, and Snowy. These are predictions and may not always match actual weather conditions.
4.3 Temperature and Humidity Display
The main unit displays both indoor and outdoor temperature and humidity. The outdoor readings are received wirelessly from the sensor. The device also shows the trend for temperature and humidity (rising, stable, falling).
4.4 Comfort Level Indicator
The indoor comfort level is indicated by an icon, calculated from the indoor temperature and humidity. There are 5 levels of comfort displayed.
4.5 Barometric Pressure Trend
The display includes an arrow indicating the trend of barometric pressure: rising, stable, or falling. This trend is used for weather forecasting.
4.6 Alarm Clock Functionality
The weather station includes a daily alarm clock.
4.6.1 Setting the Alarm
- Press the 'ALARM' button once to display the current alarm time.
- Press and hold the 'ALARM' button for 3 seconds to enter alarm setting mode. The hour digit will flash.
- Use the 'UP' or 'DOWN' buttons to adjust the hour.
- Press 'ALARM' again to confirm the hour and move to the minute setting. Adjust with 'UP' or 'DOWN'.
- Press 'ALARM' one last time to exit the setting mode.
- To activate/deactivate the alarm, briefly press the 'ALARM' button when the alarm time is displayed. An alarm icon will appear/disappear on the screen.
4.6.2 Snooze Function
When the alarm sounds, press the 'SNOOZE/LIGHT' button to activate the snooze function. The alarm will sound again after approximately 5 minutes. To stop the alarm completely, press any other button.
4.7 Backlight Adjustment
When powered by the USB cable, the backlight is continuously on. Briefly press the 'SNOOZE/LIGHT' button to adjust the backlight brightness (multiple levels). When powered by batteries only, the backlight will turn off automatically after a few seconds to conserve power. Press 'SNOOZE/LIGHT' to temporarily illuminate the display.
5. Maintenance
5.1 Battery Replacement
Replace batteries in both the main unit and the outdoor sensor when the low battery indicator appears on the display. Always replace with new AA batteries, ensuring correct polarity.
5.2 Cleaning the Device
Wipe the device with a soft, damp cloth. Do not use abrasive cleaners or solvents, as these may damage the display or casing. Ensure no moisture enters the device openings.
6. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| No outdoor temperature/humidity reading | Sensor out of range, low sensor battery, interference. | Move sensor closer to main unit. Replace sensor batteries. Re-pair sensor (Section 3.3). Avoid placing near electronic devices that may cause interference. |
| Incorrect time/date | Time/date not set correctly. | Refer to Section 3.4 to reset time and date. |
| Display is dim or blank | Low main unit battery, USB power not connected. | Replace main unit batteries or connect USB power cord. |
| Weather forecast seems inaccurate | Weather forecasts are predictions based on barometric pressure changes. | This is normal. The device provides a general trend, not a real-time forecast from a meteorological service. |
7. Specifications
| Feature | Specification |
|---|---|
| Brand | HUIOP |
| Model | FJ3373 |
| Main Material | Acrylonitrile Butadiene Styrene (ABS) |
| Screen Type | Positive LCD |
| Indoor Temperature Range | -10°C to +50°C (14°F to 122°F) |
| Outdoor Temperature Range | -20°C to +60°C (-4°F to 140°F) |
| Temperature Accuracy | 0.1°C |
| Humidity Range | 20% RH ~ 95% RH |
| Humidity Accuracy | 1% RH |
| Barometric Pressure Range | 600hPa/mb ~ 1100hPa/mb |
| Barometric Pressure Accuracy | 1hPa/mb |
| RF Transmission Frequency | 433.92 MHz |
| Wireless Transmission Range | 60 meters (in open area) |
| Main Unit Power Supply | 2 x AA batteries (not included) or DC 5V USB power cord |
| Outdoor Sensor Power Supply | 2 x AA batteries (not included) |
| Weather Station Dimensions | 16.7 x 12.9 x 3 cm (6.6 x 5.1 x 1.2 inches) |
| Outdoor Sensor Dimensions | 9.6 x 5 x 3.4 cm (3.8 x 2 x 1.3 inches) |
| Perpetual Calendar | Up to 2099 |
| Day of Week Languages | English, German, Italian, French, Spanish, Dutch, Danish |
8. Warranty and Support
For warranty information or technical support, please refer to the documentation provided at the point of purchase or contact your retailer. Keep your purchase receipt as proof of purchase.