Introduction
Thank you for purchasing the Senicare Digital Alarm Clock. This alarm clock is designed to provide clear time display, customizable night lighting, and convenient charging options for your devices. Its large LED display ensures readability from a distance, making it suitable for all ages. This manual provides detailed instructions for setup, operation, and maintenance to ensure optimal performance and longevity of your device.

Figure 1: Senicare Digital Alarm Clock Overview
Package Contents
Please check the package contents upon unboxing to ensure all items are present:
- 1 x Senicare Digital Alarm Clock (Model: ZH027)
- 1 x Power Adapter
- 1 x USB Power Cable (approx. 59.06 inches / 1.5 meters)
- 1 x User Manual (this document)

Figure 2: Included Package Contents
Setup
Follow these steps to set up your Senicare Digital Alarm Clock:
- Power Connection: Connect the provided USB power cable to the "INPUT 5V===2A" port on the back of the alarm clock. Plug the other end into the power adapter, and then plug the adapter into a standard electrical outlet (100-240V AC). The display will light up.
- Battery Backup (Optional): For power failure memory, insert 2 x AAA batteries (not included) into the battery compartment on the bottom of the clock. This feature ensures that time and alarm settings are retained during a power outage, though the screen will go blank.
- Initial Time Setting:
- Press the TIME SET button on the back of the clock. The hour digits will start flashing.
- Use the HOUR and MIN buttons on the top of the clock to adjust the hour and minute respectively.
- Press TIME SET again to confirm the time.
- 12/24 Hour Format: Press the 12/24H button on the back to switch between 12-hour (with AM/PM indicator) and 24-hour time formats.

Figure 3: Power Failure Memory Feature

Figure 4: Key Features Overview
Operating Instructions
Setting the Alarm
- Press the AL SET button on the back of the clock. The alarm hour digits will flash.
- Use the HOUR and MIN buttons on the top to set your desired alarm time.
- Press AL SET again to confirm the alarm time.
- To activate or deactivate the alarm, use the ALARM ON/OFF slider switch on the back of the clock. When the alarm is active, an alarm icon will appear on the display.
Snooze Function
When the alarm sounds, press the large SNOOZE LIGHT button on the top of the clock to activate the snooze function. The alarm will pause for 9 minutes and then sound again. You can repeat this process multiple times.

Figure 5: Snooze Function
Adjusting Alarm Volume
The alarm volume can be adjusted to High (HI), Medium (MI), or Low (LO) using the VOLUME slider switch located on the back of the clock.

Figure 6: Volume and Alarm Controls
Night Light Function
The clock features a 7-color soft night light. Tap the large SNOOZE LIGHT button on the top of the clock to cycle through the different colors or turn the night light off. This provides a gentle illumination for your room.

Figure 7: 7-Color Soft Night Light

Figure 8: Night Light Color Options
Automatic Dimmer
The clock is equipped with a photosensitive sensor that automatically adjusts the display brightness (0-100%) to a comfortable level based on ambient light conditions, ensuring clear visibility day and night without being too bright in the dark.

Figure 9: Auto Dimmer Display Brightness

Figure 10: Automatic Brightness Adjustment
Dual USB Charging Ports
The back of the alarm clock features two 5V 1A USB charging ports (USB1, USB2) and one Type-C output port (5V 1A). These ports allow you to conveniently charge your smartphone, tablet, or other USB-powered devices directly from the alarm clock, eliminating the need for extra wall adapters.

Figure 11: Dual USB Charging Ports in Use

Figure 12: USB and Type-C Output Ports
Maintenance
To ensure the longevity and proper functioning of your Senicare Digital Alarm Clock, please follow these simple maintenance guidelines:
- Cleaning: Use a soft, dry cloth to wipe the surface of the clock. Do not use abrasive cleaners, waxes, or solvents as they may damage the finish.
- Placement: Place the clock on a stable, flat surface away from direct sunlight, heat sources, and excessive moisture.
- Power: Always use the original power adapter and cable provided with the device.
- Battery Replacement: If using the battery backup feature, replace the AAA batteries annually or when the power failure memory function becomes unreliable.
Troubleshooting
If you encounter any issues with your alarm clock, please refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Display is blank or not lighting up. | No power connection or power outage. | Ensure the power adapter is securely plugged into both the clock and a working electrical outlet. Check if there's a power outage in your area. If using battery backup, the display will be blank during an outage, but settings are saved. |
| Alarm does not sound. | Alarm not activated, volume too low, or incorrect alarm time set. | Check the ALARM ON/OFF switch on the back to ensure it's in the "ON" position. Adjust the VOLUME slider to a higher setting. Verify that the alarm time is set correctly. |
| Display digits flicker or go blank partially. | Internal component issue or power fluctuation. | Try unplugging the clock for a few minutes and then plugging it back in. If the issue persists, contact customer support for assistance. |
| USB charging ports are not working. | Device not properly connected or power issue. | Ensure your device's USB cable is fully inserted into the clock's USB port. Verify the clock is powered on. Try a different USB port or cable. |
Specifications
| Feature | Detail |
|---|---|
| Brand | Senicare |
| Model Number | ZH027 |
| Color | Black |
| Display Type | Digital LED |
| Special Features | Adjustable Brightness, Charging Station, Large Display, Snooze, 7-Color Night Light |
| Product Dimensions | 6.65"W x 3.35"H (approx. 16.9cm W x 8.5cm H) |
| Power Source | Corded Electric (100-240V AC) |
| Battery Backup | 2 x AAA Batteries (Not Included) for settings memory |
| USB Output | Dual USB-A (5V 1A), One Type-C (5V 1A) |
| Material | Plastic |
| Item Weight | 0.63 Pounds / 10.1 ounces (approx. 286g) |
Warranty and Support
Senicare offers a hassle-free 18-month warranty for this Digital Alarm Clock. We are committed to providing high-quality products and excellent customer service.
For any questions, concerns, or warranty claims, please contact our friendly customer service team through the platform where you purchased the product. Please have your order number and product model (ZH027) ready for faster assistance.
We also offer an easy return policy. Refer to the retailer's return guidelines for more details.