Introduction
The Baldr BD-910 Wireless Weather Station is designed to provide accurate indoor and outdoor temperature and humidity measurements. It features a clear backlit LCD display, a comfort level indicator, and a 12/24 hour clock. This manual provides instructions for setup, operation, and maintenance of your weather station.
Package Contents
- 1 x Baldr BD-910 Weather Station (Main Unit)
- 1 x Outdoor Wireless Sensor
- 1 x Stand for Main Unit
- 1 x Instruction Manual
Product Overview
Familiarize yourself with the main unit and its components.

Image 1: Front view of the Baldr BD-910 Weather Station main unit, displaying time, indoor/outdoor temperature and humidity, and comfort level.

Image 2: The Baldr BD-910 Weather Station main unit alongside its wireless outdoor sensor.

Image 3: Detailed view of the Baldr BD-910 Weather Station main unit with numbered components for identification. (1) Time display, (2) Indoor comfort indicator, (3) Indoor temperature/humidity, (4) MEM button (down arrow), (5) C/F SET button, (6) CH button (up arrow), (7) Outdoor temperature/humidity, (8) Outdoor vs Indoor Humidity indicator, (9) Outdoor channel indicator.
Setup
1. Battery Installation
Main Unit:
- Open the battery compartment cover on the back of the main unit.
- Insert 3 x AAA batteries, observing the correct polarity (+/-).
- Close the battery compartment cover.
Outdoor Sensor:
- Open the battery compartment cover on the back of the outdoor sensor.
- Insert 2 x AA batteries, observing the correct polarity (+/-).
- Close the battery compartment cover.
Note: Batteries are not included. It is recommended to use high-quality alkaline batteries.
2. Sensor Synchronization
The main unit will automatically attempt to connect with the outdoor sensor once batteries are installed in both devices. Ensure the sensor is within range (up to 60 meters in open air) of the main unit during initial setup.
- If the outdoor temperature/humidity does not display, press and hold the "CH" button on the main unit to initiate a manual search for the sensor.
- The main unit can support multiple sensors. Use the "CH" button to cycle through different sensor channels if you have more than one.
3. Placement
- Place the main unit indoors, away from direct sunlight or heat sources, to ensure accurate indoor readings.
- Position the outdoor sensor in a shaded, dry location, protected from direct rain and sunlight, for accurate outdoor readings. Ensure it is within the 60-meter transmission range.
Operating Instructions
1. Setting Time
- Press and hold the "C/F SET" button (labeled 5 in Image 3) for 3 seconds to enter time setting mode.
- The hour digit will flash. Use the "MEM" (down arrow) or "CH" (up arrow) buttons to adjust the hour.
- Press "C/F SET" again to confirm the hour and move to the minute setting.
- Repeat the process to set minutes.
- Press "C/F SET" to exit time setting mode.
- To switch between 12-hour and 24-hour format, briefly press the "C/F SET" button when not in setting mode.
2. Temperature Unit Selection (°C/°F)
Briefly press the "C/F SET" button (labeled 5 in Image 3) to toggle between Celsius (°C) and Fahrenheit (°F) temperature display.
3. Viewing Min/Max Records
Briefly press the "MEM" button (labeled 4 in Image 3) to cycle through the following displays:
- Current temperature and humidity.
- Maximum recorded temperature and humidity (MAX).
- Minimum recorded temperature and humidity (MIN).
To clear the Min/Max records, press and hold the "MEM" button for 3 seconds while viewing the MAX or MIN values.
4. Comfort Level Indicator
The main unit displays an indoor comfort level icon (labeled 2 in Image 3) based on current indoor temperature and humidity:
- :) (Happy Face): Comfortable
- :| (Neutral Face): Normal
- :( (Sad Face): Uncomfortable (too dry or too wet)
An additional "OPEN/CLOSE WINDOW" indicator may appear to suggest actions for humidity regulation.
5. Battery Level Indicator
Icons on the display indicate the battery status for both the main unit and the outdoor sensor. Replace batteries when the low battery indicator appears.
Maintenance
- Clean the unit and sensor with a soft, damp cloth. Do not use abrasive cleaners or solvents.
- Avoid exposing the main unit to direct water or extreme temperatures.
- Ensure the outdoor sensor is protected from heavy rain and direct sunlight for longevity and accurate readings.
- Replace batteries promptly when the low battery indicator appears to ensure continuous operation and prevent corrosion.
- If storing the device for an extended period, remove all batteries.
Troubleshooting
- No outdoor reading:
- Check if batteries are correctly installed in the outdoor sensor.
- Ensure the outdoor sensor is within the 60-meter range of the main unit.
- Press and hold the "CH" button on the main unit to manually search for the sensor.
- Relocate the sensor or main unit to reduce interference from other electronic devices or thick walls.
- Inaccurate readings:
- Ensure both units are placed away from direct heat sources, cold drafts, or direct sunlight.
- Verify that the outdoor sensor is protected from rain.
- Replace old batteries with new ones.
- Display is dim or blank:
- Replace batteries in the main unit.
Specifications
| Brand | Baldr |
| Model | BD-910 |
| Power Source (Main Unit) | 3 x AAA Batteries (not included) |
| Power Source (Outdoor Sensor) | 2 x AA Batteries (not included) |
| 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) |
| Humidity Range | 20% RH to 95% RH |
| Temperature Accuracy | ±1 °C |
| Wireless Frequency | 433.92 MHz |
| Transmission Range | Up to 60 meters (open air) |
| Display Type | Backlit LCD |
| Time Format | 12/24 Hour |
| Special Features | Alarm, Clock, Wireless, Comfort Indicator, Min/Max Records |
| Material | Metal, Glass, Plastic |
| Color | Silver/Black |
Warranty and Support
For warranty information or technical support, please refer to the documentation provided with your purchase or contact Baldr customer service. Specific warranty terms may vary by region and retailer.





