1. Introduction
Thank you for choosing the Fackelmann 63751 Window Thermometer. This self-adhesive thermometer is designed to provide accurate outdoor temperature readings directly from your window. Please read this manual carefully to ensure proper installation and use of your device.
2. Safety Information
- Keep out of reach of children.
- Handle with care to avoid damage to the plastic casing or the thermometer mechanism.
- Do not attempt to disassemble or modify the thermometer.
- Ensure the window surface is clean and dry before applying the adhesive.
3. Package Contents
- 1 x Fackelmann 63751 Window Thermometer
4. Setup and Installation
- Choose a Location: Select a clean, smooth, and dry window surface where the thermometer will be exposed to the outdoor temperature but ideally not direct, prolonged sunlight, which can affect readings.
- Clean the Surface: Thoroughly clean the chosen area on the window with a glass cleaner and dry it completely. Any dust or moisture can compromise the adhesive.
- Prepare the Thermometer: Carefully peel off the protective backing from the self-adhesive pads located on the corners of the thermometer.
- Attach to Window: Press the thermometer firmly onto the prepared window surface. Apply even pressure to all four adhesive pads to ensure a secure attachment.

Image 1: The Fackelmann 63751 Window Thermometer securely attached to a window pane, demonstrating its self-adhesive installation.
5. Operating Instructions
The Fackelmann 63751 Window Thermometer is an analog device that requires no power source. Once installed, it will continuously display the ambient outdoor temperature.
- Reading the Temperature: The thermometer features a dual scale, displaying temperature in both Fahrenheit (℉) and Celsius (℃).
- The inner red scale indicates Fahrenheit, ranging from approximately -50℉ to 120℉.
- The outer blue scale indicates Celsius, ranging from approximately -50℃ to 50℃.
- Read the temperature by observing the position of the indicator needle against the corresponding scale.

Image 2: A detailed view of the thermometer's face, highlighting the dual Fahrenheit and Celsius temperature scales for easy reading.
6. Maintenance
To ensure continued accuracy and clear visibility, periodic maintenance is recommended:
- Cleaning: Wipe the thermometer's surface and the surrounding window area with a soft, damp cloth. Avoid abrasive cleaners or solvents that could damage the plastic or the scales.
- Adhesive Check: Periodically check the adhesive pads to ensure the thermometer remains securely attached to the window.
7. Troubleshooting
- Inaccurate Readings: Ensure the thermometer is not in direct sunlight for extended periods, as this can cause artificially high readings. Verify it is securely attached and not obstructed.
- Thermometer Falls Off: Re-clean the window surface thoroughly and ensure it is completely dry before re-applying the thermometer. If the adhesive pads are no longer effective, consider using new double-sided adhesive suitable for outdoor use.
8. Specifications
| Feature | Detail |
|---|---|
| Model | 63751 |
| Brand | Fackelmann |
| Dimensions | Approximately 3 x 3 inches (7.6 x 7.6 cm) |
| Material | Plastic |
| Display Type | Analog |
| Temperature Scale | Fahrenheit (℉) and Celsius (℃) |
| Temperature Range | Approx. -50℉ to 120℉ / -50℃ to 50℃ |
| Mounting | Self-adhesive |
| Special Feature | Waterproof |
9. Warranty and Support
The Fackelmann 63751 Window Thermometer comes with a 1-year guarantee from the date of purchase. This warranty covers manufacturing defects under normal use.
For warranty claims, technical support, or any questions regarding your product, please contact Fackelmann customer service through their official website or the retailer from whom you purchased the item. Please retain your proof of purchase for warranty validation.