Introduction
Thank you for choosing the Technoline WT375 Radio-Controlled Digital Alarm Clock. This compact and feature-rich device provides accurate timekeeping, indoor temperature display, and a convenient alarm function with snooze. Its E-Ink display offers excellent readability. Please read this manual carefully to ensure proper setup and operation.
Figure 1: Front view of the Technoline WT375 Digital Alarm Clock.
Key Features
- High-quality radio-controlled timekeeping (no manual time setting required).
- E-Ink / E-paper display for superior readability.
- Switchable display mode (normal to negative).
- 12/24 hour time format display.
- Date display.
- Indoor temperature display in Celsius (°C) or Fahrenheit (°F).
- Alarm with snooze function.
- Low battery indicator.
Package Contents
Please check the package contents to ensure all items are present:
- 1 x Technoline WT375 Digital Alarm Clock
- 1 x User Manual (this document)
Note: 2 x AAA Micro LR03 batteries are not included and must be purchased separately.
Figure 2: Product packaging, indicating included items and features.
Setup
1. Battery Installation
- Locate the battery compartment on the back of the alarm clock.
- Open the battery compartment cover.
- Insert 2 x AAA (LR03) batteries, ensuring correct polarity (+ and -).
- Close the battery compartment cover securely.
Upon battery installation, the clock will automatically begin searching for the radio-controlled time signal (DCF-77). This process may take several minutes. Ensure the clock is placed away from sources of interference such as electronic devices or metal objects.
2. Initial Time Synchronization
The WT375 is a radio-controlled clock, meaning it automatically synchronizes its time with a precise atomic clock signal.
- Place the clock near a window for better signal reception.
- The signal reception icon (often a tower or waves) will flash during synchronization.
- Once synchronized, the icon will become solid, and the correct time, date, and day will be displayed.
- If the signal is not received within 24 hours, try relocating the clock.
Operating Instructions
Button Functions
Figure 3: Side view illustrating button placement.
| Button | Function (Short Press) | Function (Long Press) |
|---|---|---|
| MODE (often on the back/side) | Cycle through display modes (Time, Date, Temperature). | Enter time/alarm setting mode. |
| + / UP | Increase value in setting mode; Toggle 12/24 hour format (outside setting mode). | Manually initiate DCF signal search. |
| - / DOWN | Decrease value in setting mode; Toggle °C/°F temperature unit (outside setting mode). | Toggle normal/negative display mode. |
| ALARM / SET (often on the back/side) | Activate/Deactivate alarm. | Enter alarm setting mode. |
| SNOOZE / LIGHT (top button) | Activate snooze during alarm; Briefly illuminate display. | Stop alarm for the day. |
Setting the Alarm
- Press and hold the ALARM / SET button until the alarm time starts flashing.
- Use the + or - buttons to adjust the hour. Press ALARM / SET to confirm.
- Use the + or - buttons to adjust the minute. Press ALARM / SET to confirm and exit alarm setting.
- To activate or deactivate the alarm, short press the ALARM / SET button. An alarm icon will appear/disappear on the display.
Using the Snooze Function
When the alarm sounds, press the SNOOZE / LIGHT button on top of the clock. The alarm will temporarily stop and sound again after approximately 5 minutes.
To stop the alarm completely for the day, press any other button (e.g., MODE, +, -) or long press the SNOOZE / LIGHT button.
Changing Display Modes (Normal/Negative)
The WT375 features an E-Ink display that can switch between a normal (dark digits on light background) and a negative (light digits on dark background) display mode.
- Long press the - / DOWN button to toggle between the normal and negative display modes.
Figure 4: The WT375 display in negative mode.
Maintenance
- Cleaning: Wipe the clock with a soft, dry cloth. Do not use abrasive cleaners or solvents.
- Battery Replacement: When the low battery indicator appears on the display, replace both AAA batteries promptly to ensure continued accurate operation.
- Storage: If storing the clock for an extended period, remove the batteries to prevent leakage.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Clock not displaying time / blank screen. | No batteries or incorrect battery polarity. | Ensure batteries are inserted correctly with proper polarity. Replace batteries if depleted. |
| Time is incorrect or not setting automatically. | Poor DCF-77 signal reception. | Relocate the clock closer to a window or away from electronic interference. Manually initiate signal search (long press '+'). |
| Alarm not sounding. | Alarm not activated or alarm volume too low (if adjustable). | Ensure the alarm icon is displayed. Check alarm settings. (Note: This model has fixed alarm volume). |
| Temperature reading seems inaccurate. | Clock placed near heat sources or direct sunlight. | Move the clock to a location with stable ambient temperature. |
Specifications
| Feature | Detail |
|---|---|
| Model | WT375 |
| Brand | Technoline |
| Display Type | Digital E-Ink / E-paper |
| Time Format | 12/24 Hour selectable |
| Temperature Range (Internal) | -9.9 °C (14.2 °F) to +50 °C (122.0 °F) |
| Recommended Temperature Range | 0 °C (32 °F) to +40 °C (104 °F) |
| Temperature Resolution | 0.1 °C |
| Temperature Accuracy | ± 0.5 °C for 0 °C - 40 °C |
| Power Source | 2 x 1.5V AAA Micro batteries (not included) |
| Dimensions (L x W x H) | 5.9 x 3.81 x 5.9 cm (2.32 x 1.5 x 2.32 inches) |
| Weight | 69 grams (approx. 2.43 oz) |
| Material | Acrylonitrile Butadiene Styrene (ABS) |
| Special Features | Radio-controlled time, Calendar display, Alarm, Snooze, E-Ink display, Low battery indicator |
Warranty and Support
For warranty information and technical support, please refer to the documentation provided with your purchase or visit the official Technoline website.
Manufacturer: technoline
Country of Origin: China
