1. Introduction
Thank you for choosing the Bresser Digital Thermometer Hygrometer Set. This device is designed to accurately measure and display indoor temperature and humidity, helping you maintain an optimal indoor climate and prevent mold growth. Each unit features a clear digital display and a convenient smiley indicator for quick climate assessment. This manual provides essential information for setup, operation, and maintenance.

Image 1.1: Bresser Digital Thermometer Hygrometer Set
2. Package Contents
Your Bresser Digital Thermometer Hygrometer Set includes the following items:
- 6 x Bresser Digital Thermometer Hygrometers
- 6 x CR2032 Batteries (pre-installed or included separately)
- 1 x User Manual
3. Setup
3.1. Battery Installation
The thermometer hygrometers come with CR2032 batteries. If not pre-installed, please follow these steps:
- Locate the battery compartment cover on the back of the device.
- Open the cover.
- Insert one CR2032 battery, ensuring the correct polarity (+/-).
- Close the battery compartment cover securely.
3.2. Placement Options
The Bresser Digital Thermometer Hygrometer offers multiple placement options:
- Tabletop Placement: Utilize the integrated foldable stand on the back of the device to place it on any flat surface, such as a desk, shelf, or refrigerator top.
- Wall Mounting: Use the integrated hanging hook to mount the device on a wall. Ensure the wall is suitable for mounting and use appropriate fasteners (not included).
- Magnetic Attachment: The device features a magnet on its back, allowing it to be attached to metallic surfaces like refrigerators or magnetic boards.

Image 3.1: Foldable Kickstand for Tabletop Use

Image 3.2: Hanging Hook for Wall Mounting
4. Operating Instructions
Once the battery is installed, the device will automatically power on and begin displaying temperature and humidity readings.
4.1. Reading the Display
The digital display shows two main values:
- Temperature: Displayed in degrees Celsius (°C) at the top of the screen.
- Humidity: Displayed as a percentage (%) at the bottom of the screen.
4.2. Smiley Indicator
A unique feature of this device is the smiley indicator, which provides a quick visual assessment of the indoor climate based on temperature and humidity levels:
- Happy Green Smiley: Indicates an optimal indoor climate.
- Neutral Yellow Smiley: Indicates an average indoor climate.
- Sad Red Smiley: Indicates a poor indoor climate, suggesting action may be needed (e.g., ventilation, humidification/dehumidification).

Image 4.1: Display with Happy Smiley Indicator

Image 4.2: Smiley Indicator Climate Guide
5. Maintenance
5.1. Cleaning
To clean the device, wipe it gently with a soft, dry cloth. Do not use abrasive cleaners, solvents, or immerse the device in water.
5.2. Battery Replacement
When the display becomes dim or stops functioning, it is time to replace the CR2032 battery. Follow the battery installation steps in Section 3.1. Dispose of used batteries responsibly according to local regulations.
6. Troubleshooting
- No Display:
- Check if the battery is correctly installed with the correct polarity.
- Replace the battery with a new CR2032 battery.
- Inaccurate Readings:
- Ensure the device is placed in a location free from direct sunlight, drafts, or heat sources that could affect readings.
- Allow the device to stabilize for at least 30 minutes after placement or battery change.
- Compare readings with another calibrated device if available. Note that the specified tolerance for temperature is +/- 1 °C and for humidity is +/- 5 %.
- Smiley Indicator Not Changing:
- The smiley indicator changes based on specific temperature and humidity ranges. Ensure the environmental conditions are outside the current smiley's range for it to change. Refer to Image 4.2 for the climate guide.
7. Specifications
| Feature | Specification |
|---|---|
| Model Number | 7000015QT5000 |
| Dimensions (L x W x H) | 5.8 x 4.5 x 1.2 cm (45l x 12H millimeters) |
| Weight | 85 grams (per unit) |
| Power Source | 1 x CR2032 Battery (3 Volts) |
| Temperature Measurement Tolerance | +/- 1 °C |
| Humidity Measurement Tolerance | +/- 5 % |
| Operating Humidity | 10% to 90% |
| Upper Nominal Temperature | 50 Degrees Celsius |
| Mounting Type | Wall Mount, Tabletop (with stand), Magnetic |
| Color | Grey |
| Country of Origin | China |
8. Safety Information
- Keep the device out of reach of children and pets.
- Do not expose the device to extreme temperatures, direct sunlight, or high humidity for extended periods.
- Avoid dropping or subjecting the device to strong impacts.
- Do not attempt to disassemble or modify the device. This will void the warranty.
- Dispose of batteries and the device according to local environmental regulations.
9. Warranty and Support
For warranty information and customer support, please refer to the packaging or visit the official Bresser website. Keep your purchase receipt as proof of purchase.