Introduction
Thank you for purchasing the RC FanJu FJ3365 Weather Station. This device provides comprehensive weather information including indoor and outdoor temperature and humidity, atmospheric pressure, and a color weather forecast. It also features an alarm clock, snooze function, calendar, and moon phase display. Please read this manual carefully before use to ensure proper operation and to fully utilize all features.

Image: Front view of the RC FanJu FJ3365 Weather Station, displaying outdoor and indoor temperature and humidity, weather forecast icons, moon phase, and atmospheric pressure.
Key Features
- Color weather forecast with 7 icons: Sunny, Slightly Cloudy, Cloudy, Rainy, Heavily Rainy, Snowy, Heavily Snowy.
- DCF radio control clock (German function only).
- Indoor and outdoor temperature and humidity display.
- Maximum/minimum temperature and humidity memory.
- Air pressure and temperature alerts.
- Trends for indoor/outdoor temperature, humidity, and air pressure.
- Daily alarm and snooze function.
- Calendar and moon phase display.
- 3-level adjustable backlight.
- Wireless outdoor sensor with up to 200 feet transmission range.
Package Contents
- 1 x RC FanJu FJ3365 Weather Station Main Unit
- 1 x Wireless Outdoor Sensor
- 1 x DC Power Adapter
- 1 x User Manual (this document)
Setup
1. Powering the Main Unit
The main unit can be powered by either the included DC power adapter or 2 x AA batteries (not included).
- Insert 2 x AA batteries into the battery compartment on the back of the main unit, observing polarity (+/-).
- Alternatively, connect the DC power adapter to the DC 4.5V port on the back of the main unit and plug it into a power outlet.

Image: Rear view of the weather station showing the battery compartment, DC power input, and control buttons.
2. Powering the Wireless Outdoor Sensor
The wireless outdoor sensor requires 2 x AA batteries (not included).
- Open the battery compartment on the back of the outdoor sensor.
- Insert 2 x AA batteries, observing polarity (+/-).
- Close the battery compartment securely.
3. Sensor Pairing
After powering both units, the weather station will automatically begin searching for the outdoor sensor signal. This process may take up to 3 minutes. The outdoor temperature and humidity will appear on the main unit's display once connected.
- To speed up the connection, press the TX button inside the outdoor sensor's battery compartment.
- Ensure the outdoor sensor is within the maximum transmission distance of 200 feet (in open areas) from the main unit.

Image: The main weather station unit displayed alongside its wireless outdoor sensor, illustrating their connection.
4. Initial Settings (Time, Date, Units)
Refer to the specific buttons on the back of the unit (e.g., MODE, UP, DOWN) to adjust time, date, 12/24-hour format, temperature units (°C/°F), and pressure units (hPa/mb).
- Press MODE to cycle through settings.
- Use + and - buttons to adjust values.
- The DCF radio control clock function (German only) will automatically set the time if available in your region.
Operating Instructions
1. Display Overview
The large LCD screen is divided into several sections:
- Outdoor Section: Displays outdoor temperature, humidity, and temperature alerts.
- Indoor Section: Displays indoor temperature, humidity, and temperature alerts.
- Time & Date: Shows current time, day of the week, and alarm time.
- Weather Forecast: Icons indicating predicted weather.
- Moon Phase & Pressure: Displays current moon phase and atmospheric pressure.
2. Weather Forecast
The weather station predicts weather for the next 8 hours based on atmospheric pressure changes. The icons include:

Image: Visual representation of the seven weather forecast icons used by the station, from sunny to heavily snowy.
Note: The weather forecast is an estimation for the next 8 hours and may not reflect current conditions.
3. Temperature and Humidity Display
- The main unit displays both indoor and outdoor temperature and humidity.
- Press the MAX/MIN button to view the maximum and minimum recorded temperature and humidity values. Press again to return to current readings.
- Temperature trends (rising, falling, stable) are indicated by small arrows next to the temperature readings.
4. Alarm and Snooze Function
- To set the alarm, press the ALARM button and use + and - to set the desired alarm time.
- To activate/deactivate the alarm, press the ALARM button repeatedly until the alarm icon appears/disappears.
- When the alarm sounds, press the SNOOZE/LIGHT button to activate the snooze function (5 minutes). The alarm will sound again after the snooze period.
- To stop the alarm, press any other button.

Image: Icons representing the calendar, daily alarm, snooze function, and moon phase features of the weather station.
5. Backlight Control
When powered by the DC adapter, the backlight is continuously on. Press the SNOOZE/LIGHT button to cycle through 3 brightness levels: High, Low, Off.
When powered by batteries only, the backlight will illuminate for a few seconds after pressing the SNOOZE/LIGHT button and then turn off to conserve power.
Maintenance
- Cleaning: Wipe the unit and sensor with a soft, damp cloth. Do not use abrasive cleaners or solvents.
- Battery Replacement: Replace batteries in both the main unit and outdoor sensor when the low battery indicator appears on the display. Ensure correct polarity.
- Placement: For accurate outdoor readings, place the outdoor sensor in a shaded, well-ventilated area, away from direct sunlight and heat sources.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| No outdoor temperature/humidity reading. |
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| Incorrect time display. |
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| Display is dim or blank. |
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Specifications
| Feature | Detail |
|---|---|
| Brand | RC |
| Model | FJ3365 |
| Power Source (Main Unit) | DC Power Adapter (included) or 2 x AA Batteries (not included) |
| Power Source (Outdoor Sensor) | 2 x AA Batteries (not included) |
| Special Features | Alarm, Barometer, Color Forecast, Moon Phase |
| Display Type | LCD |
| RF Transmission Frequency | 433.92 MHz |
| Max Transmission Distance | 200 feet (open areas) |
| Indoor Temperature Range | 14°F to 122°F (-10°C to 50°C) |
| Outdoor Temperature Range | -13°F to 122°F (-25°C to 50°C) |
| Humidity Range | 20% to 95% RH |

Image: Certification details and physical dimensions (16.5cm width, 12.5cm height, 5.5cm depth) of the weather station.
Warranty and Support
This product comes with a standard manufacturer's warranty. For detailed warranty information, technical support, or service inquiries, please refer to the contact information provided with your purchase or visit the manufacturer's official website.
If you encounter any issues or have questions regarding the operation of your RC FanJu FJ3365 Weather Station, please do not hesitate to contact customer support.