Product Overview
The Timegyro Digital Alarm Clock is a battery-operated alarm clock designed for convenience and ease of use. Featuring a clear LED display, adjustable brightness, and a long battery life, it is perfect for bedrooms, desks, or as a travel companion. Its simple design and intuitive controls make it an ideal choice for anyone seeking a reliable timekeeping device without the need for constant power outlets.
Key Features:
- Battery Operated: Powered by 4 AA batteries for over 1 year of operation.
- Adjustable Brightness: 3 levels of LED brightness with an automatic night-mode (dims from 8:00 PM to 6:00 AM).
- Clear LED Display: Large, easy-to-read digits with switchable 12/24 hour modes.
- Compact and Portable: Ideal for desks, nightstands, or travel.
- Snooze Function: 7-minute snooze, repeatable up to 3 times.

Figure 1: Front view of the Timegyro Digital Alarm Clock.
Setup Guide
1. Battery Installation
The Timegyro Digital Alarm Clock requires 4 AA batteries (not included) for operation. No USB ports or power adapters are needed.
- Locate the battery compartment cover on the back of the clock.
- Slide the cover off to open the compartment.
- Insert 4 AA batteries, ensuring correct polarity (+/-) as indicated inside the compartment.
- Slide the battery compartment cover back into place until it clicks securely.

Figure 2: Rear view of the clock with battery compartment and control buttons labeled.
2. Initial Time Setting
After installing batteries, the clock will power on. You will need to set the current time.
- Locate the 'TIME SET' button on the back of the clock (refer to Figure 2).
- Press and hold the 'TIME SET' button until the hour digits begin to flash.
- Use the 'HOUR' button to adjust the hour.
- Press the 'TIME SET' button again to switch to minute adjustment.
- Use the 'MIN' button to adjust the minutes.
- Press 'TIME SET' once more to confirm and exit time setting mode.
Operating Instructions
1. Switching 12/24 Hour Format
The clock supports both 12-hour (Standard Time) and 24-hour (Military Time) display formats.
- To switch between formats, locate the '12/24 HR' button on the back of the clock (refer to Figure 2).
- Press this button to toggle between the 12-hour and 24-hour display.

Figure 3: Comparison of 12-hour and 24-hour display formats.
2. Setting the Alarm
To set an alarm time:
- Locate the 'AL SET' button on the back of the clock (refer to Figure 2).
- Press and hold the 'AL SET' button until the alarm hour digits begin to flash.
- Use the 'HOUR' button to adjust the alarm hour.
- Press the 'AL SET' button again to switch to alarm minute adjustment.
- Use the 'MIN' button to adjust the alarm minutes.
- Press 'AL SET' once more to confirm and exit alarm setting mode.
3. Turning Alarm On/Off
To activate or deactivate the alarm:
- Locate the 'AL ON/OFF' switch on the back of the clock (refer to Figure 2).
- Slide the switch to the 'ON' position to enable the alarm. An alarm icon will appear on the display.
- Slide the switch to the 'OFF' position to disable the alarm. The alarm icon will disappear.

Figure 4: Alarm ON/OFF and Snooze ON/OFF indicators.
4. Using the Snooze Function
When the alarm sounds, you can activate the snooze function:
- Press the large 'SNOOZE AL STOP' button located on the top of the clock.
- The alarm will pause for 7 minutes and then sound again.
- This snooze function can be used up to 3 times.
- To completely stop the alarm, slide the 'AL ON/OFF' switch to 'OFF'.

Figure 5: Activating the snooze function by pressing the top button.
5. Adjusting Display Brightness
The clock offers three brightness levels and an automatic night-mode.
- Locate the brightness switch on the back of the clock (refer to Figure 2).
- Slide the switch to select your desired brightness level (High, Medium, Low).
- The 'Night-Mode' automatically dims the display to the lowest brightness setting between 8:00 PM and 6:00 AM to prevent it from being too dazzling in a dark room.

Figure 6: Visual representation of three brightness levels for the LED display.

Figure 7: Automatic dimming feature for night-mode.
6. Flashing Dots Between Numbers
You can choose whether the colon (dots) between the hour and minute digits flashes or remains static.
- Press and hold the 'MIN AL ON/OFF' button for 2 seconds to toggle the flashing dots on or off.

Figure 8: Controlling the flashing colon on the display.
Maintenance
Cleaning
To clean your Timegyro Digital Alarm Clock, gently wipe the surface with a soft, dry cloth. Avoid using abrasive cleaners or solvents, as these may damage the finish or the display.
Battery Replacement
When the display starts to dim significantly or the clock stops functioning, it is time to replace the batteries. Follow the battery installation steps outlined in the Setup Guide (Section 1.1).
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Clock display is blank or dim. | Batteries are low or incorrectly installed. | Replace batteries with 4 new AA batteries. Ensure correct polarity. |
| Alarm does not sound. | Alarm is not set or is turned off. | Verify alarm time is set correctly and the 'AL ON/OFF' switch is in the 'ON' position. |
| Time is incorrect. | Time was not set correctly or has drifted. | Re-set the current time following the instructions in Section 1.2. |
| Display is too bright at night. | Brightness setting is too high or night-mode is not active. | Adjust the brightness switch to a lower setting. Ensure the clock is operating within the 8:00 PM - 6:00 AM window for automatic dimming. |
Specifications
- Brand: Timegyro
- Model: CRS1B
- Display Type: Digital LED
- Power Source: 4 x AA Batteries (not included)
- Product Dimensions: Approximately 5.1" (W) x 1.5" (D) x 2.6" (H)
- Item Weight: 3.2 ounces
- Material: Plastic
- Special Features: Snooze, Alarm, Auto Dimmable, Brightness Dimmer, Battery Operated, Cordless, 12/24Hr Display, Easy to Use, Large Display, Wall Mountable

Figure 9: Product dimensions and key features.
Warranty Information
Specific warranty details for the Timegyro Digital Alarm Clock are not provided in this manual. Please refer to the product packaging or the official Timegyro brand store on Amazon for the most up-to-date warranty information.
Customer Support
For further assistance, questions, or support regarding your Timegyro Digital Alarm Clock, please visit the official Timegyro Store on Amazon or refer to the product's listing page for contact options.

