1. Product Overview
The Netzu Digital Alarm Clock is designed to provide clear time and temperature display with an innovative projection feature. It includes a 180° rotatable projector, an LED screen with adjustable brightness, and an alarm with a snooze function. This model (P338PB) also features RGB color options for the display.
Key Features:
- 180° Rotatable Projection of Time and Temperature
- Adjustable Projection Brightness (3 levels)
- LED Display with 5 Brightness Levels
- Temperature Display (°C/°F switchable)
- 12/24 Hour Time Format
- Alarm with 3 Volume Levels
- 9-Minute Snooze Function
- USB-C Power Supply with AAA Battery Backup (for settings)
- Compact Design
Package Contents:
- 1x Netzu Digital Alarm Clock
- 1x USB-C Cable
- 1x Power Adapter (EU Plug)
- 1x User Manual
2. Setup
2.1 Power Connection
Connect the provided USB-C cable to the alarm clock and the power adapter. Plug the adapter into a standard electrical outlet. The clock requires continuous AC power to function. For backup of settings during a power outage, insert two AAA batteries (not included) into the battery compartment. Note that batteries only maintain settings and do not power the display or projection.
Image: Power connection setup. The image shows the alarm clock connected to a wall outlet via a USB-C cable and adapter. Two AAA batteries are depicted next to the clock, indicating their use for memory backup.
2.2 Initial Time and Alarm Setting
Upon first power-up or after battery replacement, you may need to set the time and alarm. Refer to the "Operating Instructions" section for detailed steps on setting the time, alarm, and other preferences.
3. Operating Instructions
3.1 Setting Time and Date
- Press and hold the SET button to enter time setting mode.
- Use the + or - buttons to adjust the hour. Press SET to confirm and move to minutes.
- Adjust minutes with + or -. Press SET to confirm.
- Continue pressing SET to cycle through year, month, and day settings, adjusting each with + or -.
- Press SET one last time to exit time/date setting mode.
3.2 Changing 12/24 Hour Format
In normal time display mode, short press the 12/24H button (often combined with SET or MODE) to switch between 12-hour (with AM/PM indicator) and 24-hour formats.
Image: Time and Temperature Display Options. The image illustrates the clock displaying time in both 24-hour and 12-hour formats, and temperature in both Celsius and Fahrenheit, highlighting the switchable options.
3.3 Setting the Alarm
- Press the ALARM button (often indicated by a bell icon) to view the current alarm time.
- Press and hold the ALARM button to enter alarm setting mode.
- Use + or - to set the alarm hour, then press ALARM to confirm.
- Use + or - to set the alarm minutes, then press ALARM to confirm and exit.
- To activate/deactivate the alarm, short press the ALARM button repeatedly until the alarm icon appears/disappears on the display.
3.4 Adjusting Alarm Volume and Snooze
When the alarm sounds, press the SNOOZE button (usually a large button on top) to activate the 9-minute snooze function. The alarm will sound again after 9 minutes. To stop the alarm completely, press any other button.
To adjust the alarm volume, locate the volume control button (often combined with + or - buttons, or a dedicated VOL button). Cycle through the 3 available volume levels (L01, L02, L03).
Image: Alarm Volume and Snooze. The image displays the alarm clock with indicators for three volume levels (L01, L02, L03) and a visual representation of the 9-minute snooze function.
3.5 Adjusting Display Brightness and RGB Colors
Short press the BRIGHTNESS button (often indicated by a sun icon) to cycle through the 5 levels of LED display brightness (OFF, L1, L2, L3, L4). Select the desired brightness for optimal visibility during the day and minimal disturbance at night.
For RGB models, there may be an additional button or a long press function on the brightness button to cycle through different RGB color modes or static colors for the display. Refer to the specific button layout on your device.
Image: 5-Level Display Brightness. The image shows two alarm clocks, one with a brighter display (L4) and another with a dimmer display (L1), illustrating the adjustable brightness levels.
3.6 Using the Projector
The projector arm can be rotated 180° to project the time and temperature onto a wall or ceiling. The optimal projection distance is between 0.5 and 3 meters (1.6 to 11.4 feet).
- Adjusting Projection Brightness: Short press the PROJECTION button (often indicated by a projector icon) to cycle through 3 brightness levels or turn the projection off.
- Reversing Projection: If the projected image is upside down, press and hold the PROJECTION button to reverse the image 180°.
Image: Ultra Clear Projector Function. This image demonstrates the 180° rotation and image reversal capabilities of the projector, along with its adjustable brightness levels (L1-L4) and effective projection distance.
3.7 Changing Temperature Unit (°C/°F)
Short press the °C/°F button (often located near the temperature display) to switch between Celsius and Fahrenheit temperature units.
4. Maintenance
4.1 Cleaning
To clean the alarm clock, gently wipe the surface with a soft, dry cloth. Do not use abrasive cleaners, solvents, or chemical sprays, as these can damage the finish or internal components. Ensure the device is unplugged before cleaning.
4.2 Battery Replacement
If the clock loses its settings during a power outage, the AAA backup batteries may need replacement. Open the battery compartment on the bottom of the unit, remove the old batteries, and insert two new AAA batteries, observing the correct polarity (+/-). Close the compartment securely.
5. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Clock display is off or flickering. | No power, loose connection, display brightness set to OFF. | Check USB-C cable and adapter connection. Ensure power outlet is functional. Adjust display brightness (Section 3.5). |
| Projection is not visible or dim. | Projection brightness set too low or OFF, incorrect distance, ambient light too bright. | Adjust projection brightness (Section 3.6). Ensure optimal projection distance (0.5-3m). Reduce ambient light. |
| Projected image is upside down. | Projection orientation needs adjustment. | Press and hold the PROJECTION button to reverse the image (Section 3.6). |
| Alarm does not sound. | Alarm not activated, alarm volume too low. | Ensure alarm is activated (alarm icon visible). Adjust alarm volume (Section 3.4). |
| Clock loses time/settings after power outage. | Backup batteries are dead or not installed. | Install or replace 2 AAA backup batteries (Section 4.2). |
6. Specifications
Image: Compact Size with Clear Digits. The image highlights the compact dimensions of the alarm clock, showing its length (6.89 inches), height (2.17 inches), and depth (1.3 inches), along with the clear digital display.
| Feature | Detail |
|---|---|
| Brand | Netzu |
| Model Number | P338PB |
| Color | Negro-rgb (Black-RGB) |
| Display Type | Digital LED |
| Special Feature | Projection Clock, Temperature Display, RGB Display |
| Product Dimensions (W x H) | 17.5 cm x 5.8 cm (6.89 in x 2.28 in) |
| Power Source | Corded Electric (USB-C) |
| Backup Batteries | 2x AAA (not included) - for settings memory only |
| Material | Plastic |
| Projection Range | 0.5 - 3 meters (1.6 - 11.4 feet) |
| Display Brightness Levels | 5 levels (OFF, L1, L2, L3, L4) |
| Projection Brightness Levels | 3 levels |
| Alarm Volume Levels | 3 levels (L01, L02, L03) |
| Snooze Duration | 9 minutes |
7. Warranty and Support
No specific warranty information is provided in the product details. For support or inquiries, please refer to the contact information provided with your purchase or visit the official Netzu website.