Introduction
This manual provides comprehensive instructions for the KALEVOL Wireless Indoor Outdoor Thermometer Digital Atomic Clock Weather Station with Multiple Sensors. Please read this manual thoroughly before operating the device to ensure proper use and optimal performance.

Image: The KALEVOL Weather Station main display unit shown with its three accompanying wireless outdoor sensors.
What's in the Box
- Weather Station Main Unit
- 3 x Wireless Remote Sensors
- User Manual
Key Features
- 3 Wireless Indoor/Outdoor Sensors: Provides temperature and humidity data for up to 4 locations (1 main unit + 3 sensors) with a transmission range of 200 feet (60 meters) in open areas.
- Reliable Weather Change Monitoring: Calculates 12-hour weather forecasts based on temperature, humidity, and barometric index.
- Large Digital LCD Display: 6.3-inch length by 4.5-inch width display with excellent reading angle, showing data for 4 locations. Includes unique colorful sticker modules for location identification.
- Dual Alarm & Atomic Clock: Features automatic or manual WWVB signal search for accurate time calibration and a dual alarm clock function.
- Battery Power with Backlight: Battery-powered unit with a 15-second backlight for easy reading in dark environments, designed to conserve power.

Image: Close-up of the weather station's large digital display highlighting its multi-function capabilities including temperature, humidity, weather forecast, radio-controlled time, calendar, and alarm.

Image: Illustration showing the versatility of the three wireless sensors, placed in a bedroom, kitchen, and greenhouse, demonstrating their 200 feet / 60 meters transmission range.
Setup Guide
- Unpack Components: Carefully remove the main weather station unit and the three wireless remote sensors from their packaging.
- Install Batteries: Insert 2 x AA batteries (not included) into the main weather station unit and each of the three remote sensors. Ensure correct polarity.
- Initial Sensor Connection: Place the weather station host and all sensors together in the same location. This allows for initial pairing and data stabilization.
- Activate Sensors: On each sensor, ensure the channel switch (1, 2, or 3) is set to a unique channel. Press the sensor button to actively send signals to the main unit. The sensor may take up to 3 minutes to connect.
- Time Calibration: The atomic clock function will automatically search for WWVB signals to calibrate the time. This may take some time. Manual calibration options are also available if needed.
- Placement: Once connected, place the main unit in your desired indoor location. Strategically place the remote sensors in the areas you wish to monitor (e.g., garden, garage, baby room, kitchen).

Image: The weather station is battery-powered (2 x AA, not included) and features a backlight that illuminates for 15 seconds to conserve power.
Operating Instructions
Reading the Display
The large LCD display shows the time, date, indoor temperature and humidity, and the temperature and humidity from each of the three remote sensors. Each sensor's data is clearly labeled with a colored partition sticker for easy identification (e.g., Indoor, Garden, Swimming, Children, or customizable labels).

Image: The weather station display allows for clear identification of monitoring areas for each of the three sensors using customizable labels such as Children's Angle, Living Room, Kitchen, Garden, Baby Room, and Garage.
Backlight Function
To activate the backlight, click the "Light/SNZ" button located on the top of the device. The screen will illuminate for 15 seconds, allowing you to read the information in low-light conditions. This feature is designed to save battery power.
Atomic Clock and Dual Alarm
The weather station automatically or manually searches for WWVB signals to ensure accurate time. The dual alarm clock function can be set to manage your daily schedule effectively.

Image: The weather station features both automatic and manual time calibration functions, ensuring accurate time display.

Image: The weather station includes a dual alarm feature, promoting a healthy lifestyle by assisting with wake-up and sleeping times.
Weather Forecast
The station analyzes temperature, humidity, and barometric pressure to provide a forecast for the next 12 hours. This helps in planning activities and preparing for weather changes.

Image: The weather station provides a visual representation of the weather forecast for the next 12 hours, including sunny, partly sunny, cloudy, rainy, and snowy conditions.
Maintenance
- Battery Replacement: Replace batteries in both the main unit and sensors when the low battery indicator appears on the display.
- Cleaning: Wipe the display and sensor units with a soft, dry cloth. Avoid using abrasive cleaners or solvents.
- Sensor Placement: Ensure outdoor sensors are placed in a sheltered location to protect them from direct rain and sunlight, which can affect accuracy and lifespan.
Troubleshooting
Sensor Not Working / No Reading
- Remove batteries from both the main host unit and the problematic sensor.
- Wait for 1 to 5 minutes.
- Reinsert batteries into both the sensor and the main unit.
- Ensure the channel switch (1, 2, or 3) on the sensor is pushed to the corresponding channel setting on the host unit.
- Verify that the sensor is within the 200 feet (60 meters) transmission range and there are no major obstructions.
- Allow up to 3 minutes for the sensor to reconnect and display data.
Note: The data collected by the weather station takes several hours to stabilize after initial setup or reconnection. For best results, keep the main unit and sensors close together during the initial setup phase.
Specifications
Feature | Detail |
---|---|
Product Dimensions | 6.89 x 5.24 x 3.46 inches |
Item Weight | 1.06 Pounds |
Model Number | EM3383B |
Manufacturer | KALEVOL |
Country of Origin | China |
Recommended Uses | Office, Garden, Home |
Specific Uses | Temperature, Humidity, Time, Date |
Power Source | Battery Powered |
Special Feature | Large Display With Color Partition Stickers, Thermometer, Humidity Monitor, Alarm, Clock |
Material | Acrylonitrile Butadiene Styrene (ABS) |
Connectivity Technology | RF |
Style | Weather Station with Basic Display |
Color | Black |
Warranty and Support
KALEVOL is committed to customer satisfaction. For any product inquiries, technical support, or warranty claims, please refer to the contact information provided with your purchase or visit the official KALEVOL website. Please retain your proof of purchase for warranty purposes.
KALEVOL actively listens to customer feedback and is committed to continuously innovating and optimizing products to ensure a comfortable and healthy living experience and after-sales service support.