1. Introduction
Thank you for choosing the LUCORB 12-inch Digital Gym Timer and Wall Clock. This versatile device is designed to enhance time management in various environments, including home gyms, offices, classrooms, and living spaces. It features multiple display modes, advanced timing functions, and convenient remote control operation. This manual provides detailed instructions for setup, operation, and maintenance to ensure optimal performance and longevity of your device.
2. Package Contents
Please verify that all items listed below are included in your package:
- LUCORB 12-inch Digital Gym Timer and Wall Clock
- Remote Control
- Power Adapter (USB Powered)
- USB Cable (6 ft)
- Wall Mounting Screws and Anchors
- User Manual (this document)

Image: The LUCORB Digital Gym Timer and Wall Clock, remote control, power adapter, USB cable, and wall mounting hardware.
3. Product Overview
The LUCORB Digital Gym Timer and Wall Clock is a multi-functional device designed for precise timekeeping and advanced interval training. It features a large LED display for clear visibility and a comprehensive remote control for easy operation.
Key Features:
- 5 Display Modes: Time, Date/Day of Week, Countdown Timer, Stopwatch, and a Cycle Display mode.
- Gym Interval Timer: Built-in preset programs (TABATA, HIIT, FGB) and 6 customizable workout plans.
- Voice Prompts: Real-time audio guidance for workout rounds and progress.
- 4 Alarms: Three daily alarms and one future alarm with customizable settings.
- Remote Control: Full control over all functions from a distance.
- Auto-Dimming & Manual Brightness: Adjusts display brightness automatically or manually.
- Daylight Saving Time (DST) Compatibility: Automatic adjustment for DST.
- 999-Day Countdown: For tracking long-term events.

Image: An illustration highlighting the all-in-one features of the digital gym clock, including time, calendar, alarms, interval timer, countdown, and stopwatch.

Image: The clock displaying various information across its 5 display modes, controlled by the remote, suitable for multiple uses.
4. Setup
4.1 Power Connection
- Connect the provided USB cable to the clock's power input port.
- Plug the USB cable into the included power adapter.
- Insert the power adapter into a standard electrical outlet. The clock will power on automatically.
Note: The clock is powered by electricity. The internal battery backup is for memory retention of settings during power outages, not for continuous operation.
4.2 Initial Time Setting
Upon first power-up or after a prolonged power loss without battery backup, you may need to set the time. Use the remote control to navigate to the time setting mode (refer to Section 5.1 for detailed instructions).
4.3 Mounting Options
The LUCORB Digital Gym Timer offers two placement methods:
- Wall Mounting: Use the provided screws and anchors to securely mount the clock on a wall. Ensure the mounting surface is suitable to support the clock's weight.
- Table Stand: Place the clock on a flat surface such as a desk or table. The clock is designed to stand stably on its own.

Image: Demonstrates the flexibility of placing the clock either by mounting it on a wall or by using it as a tabletop device.
5. Operating Modes
All operating modes are controlled via the included remote control. Ensure the remote has working batteries and is pointed towards the clock's sensor.
5.1 Time Display (12/24 Hour)
The clock displays time in either 12-hour (with AM/PM indicator) or 24-hour format. Use the '12/24H' button on the remote to toggle between formats.
5.2 Date and Day of Week Display
The clock can display the current date and day of the week. This information can be viewed in one of the 5 display modes. Refer to the remote control section for specific button functions to cycle through display modes.
5.3 Alarm Settings
The clock features 4 programmable alarms: 3 daily alarms and 1 future alarm. To set an alarm:
- Press the 'Alarm' button on the remote to enter alarm setting mode.
- Use the 'UP' and 'DN' buttons to select the alarm (A1, A2, A3, or A4).
- Press 'OK' to confirm selection and proceed to set the hour, then minute.
- Use 'UP' and 'DN' to adjust values, and 'OK' to move to the next setting.
- For daily alarms, you can set the days of the week it should be active. For the future alarm, you can set a specific date.
- Press 'Alarm' again to exit setting mode.
5.4 Countdown Timer
The countdown timer can be set for durations up to 99 minutes and 59 seconds, or up to 999 days for long-term events.
- Press the 'Countdown' button on the remote.
- Use the number buttons or 'UP'/'DN' to set the desired time (e.g., minutes and seconds).
- Press 'OK' or 'Start/Pause' button to begin the countdown.
- Press 'Start/Pause' again to pause, and once more to resume.
- Press 'Reset' to clear the timer.
5.5 Count-Up Timer (Stopwatch)
The stopwatch function measures elapsed time up to 99 minutes and 59 seconds.
- Press the 'Stopwatch' button on the remote.
- Press 'Start/Pause' to begin counting up.
- Press 'Start/Pause' again to pause, and once more to resume.
- Press 'Reset' to clear the stopwatch.
5.6 Interval Workout Timer
This mode is ideal for gym workouts, offering preset programs and customizable options.

Image: The clock displaying different timer functions, including countdown, count-up, stopwatch, and various interval training programs.
Preset Programs:
The clock includes pre-programmed workout routines:
- TABATA (TA): 8 rounds of 20 seconds work, 10 seconds rest.
- HIIT (H1, H2, H3): High-Intensity Interval Training programs.
- FGB (F1, F2, F3): Fight Gone Bad style workouts.
To activate a preset program, press the corresponding button (e.g., '1TA', '2HIIT', '3FGB') on the remote. Press 'Start/Pause' to begin.
Custom Programs (P1-P6):
You can program up to 6 custom interval workout plans. These are divided into 3 intermediate and 3 advanced groups.
- Press the 'Program' button (e.g., '4P1', '5P2', '6P3') to select a custom program slot.
- Use 'UP'/'DN' and 'OK' to set the number of rounds, work time, and rest time for each interval.
- Save the program.
- Press 'Start/Pause' to begin your custom workout.
5.7 EMOM (Every Minute On the Minute) Function
The independent 'Loop Countdown' button supports EMOM workouts for up to 99 rounds, suitable for Boxing, MMA, or UFC training. Press the 'Loop Countdown' button, set the desired minute interval, and press 'Start/Pause'.
5.8 Voice Prompts
The upgraded voice feature provides real-time audio cues for your current round and progress during interval workouts, allowing you to focus on your exercise without constantly looking at the display.

Image: The voice prompt feature in action, indicating the current round of a workout, helping users stay focused.
5.9 Brightness Adjustment & Auto-Dimming
The clock features an auto-dimming function that adjusts brightness based on ambient light. You can also manually adjust the brightness levels using the remote control's brightness buttons (usually labeled with sun icons or 'F+'/'C-').
5.10 Daylight Saving Time (DST)
The clock is compatible with Daylight Saving Time and can automatically adjust. Ensure the DST setting is enabled in the clock's menu (refer to remote control instructions for navigation).
5.11 999-Day Countdown Timer
Beyond standard countdowns, the clock supports a long-term countdown of up to 999 days, useful for tracking important events, deadlines, or project timelines. Access this feature via the 'Countdown' button and follow the on-screen prompts to set the date.
6. Remote Control Functions
The remote control is your primary interface for operating the LUCORB Digital Gym Timer. Familiarize yourself with its buttons:
- Power Button: Turns the display on/off.
- 12/24H: Toggles between 12-hour and 24-hour time formats.
- Day: Cycles through display modes (Time, Date, etc.).
- Alarm Icon: Enters alarm setting mode.
- UP/DN Arrows: Adjust values or navigate menus.
- OK: Confirms selections.
- Start/Pause Button: Starts or pauses timers/stopwatch.
- Stop Button: Stops timers/stopwatch.
- Reset Button: Resets timers/stopwatch.
- Countdown Button: Activates countdown timer.
- Stopwatch Button: Activates stopwatch.
- 1TA, 2HIIT, 3FGB: Activates preset interval programs.
- 4P1, 5P2, 6P3: Selects custom program slots.
- F+/C-: Adjusts display brightness.
- Loop Countdown: Activates EMOM function.
7. Maintenance
To ensure the longevity and proper functioning of your LUCORB Digital Gym Timer, follow these maintenance guidelines:
- Cleaning: Wipe the display and casing with a soft, dry cloth. Do not use abrasive cleaners, solvents, or spray directly onto the clock.
- Power: Always use the provided power adapter and USB cable. Ensure the power connection is secure.
- Battery Backup: The internal battery is for memory retention only. If the clock loses time settings frequently after power outages, the internal battery may need replacement by a qualified technician.
- Remote Control Batteries: Replace the remote control batteries when its range or responsiveness decreases. Refer to the remote's battery compartment for battery type (typically AAA or CR2025 coin cell).
8. Troubleshooting
If you encounter issues with your LUCORB Digital Gym Timer, please refer to the following common problems and solutions:
- Clock does not power on:
- Ensure the power adapter is securely plugged into both the clock and a working electrical outlet.
- Check if the power outlet is functional by plugging in another device.
- Verify the USB cable is not damaged.
- Remote control is not working:
- Check and replace the remote control batteries.
- Ensure there are no obstructions between the remote and the clock's sensor.
- Point the remote directly at the clock.
- Time is incorrect or resets:
- Manually set the time using the remote control (refer to Section 5.1).
- If the time resets after every power outage, the internal memory backup battery may be depleted. Contact customer support for assistance.
- Display is too dim or too bright:
- Adjust the brightness manually using the 'F+'/'C-' buttons on the remote.
- Ensure the auto-dimming feature is enabled or disabled as desired.
- Voice prompts are not audible:
- Check if the volume is turned up (if a volume control is available on the remote or clock).
- Ensure the voice prompt feature is enabled in the settings.
If the problem persists after attempting these solutions, please contact LUCORB customer support for further assistance.
9. Specifications
| Feature | Specification |
|---|---|
| Brand | LUCORB |
| Model Number | RC12BR |
| Product Dimensions | 12"W x 3.54"H x 1.22"D |
| Material | Plastic |
| Item Weight | 0.63 Pounds (10.1 ounces) |
| Power Source | Electric (USB Powered) |
| Display Modes | 5 (Time, Date/Day, Countdown, Stopwatch, Cycle) |
| Alarms | 4 (3 Daily, 1 Future) |
| Interval Programs | Preset (TABATA, HIIT, FGB), 6 Custom |
| Special Features | Voice Prompts, Auto-Dimming, DST Compatibility, 999-Day Countdown |
10. Warranty and Support
LUCORB products are designed for quality and reliability. This product comes with a standard manufacturer's warranty against defects in materials and workmanship. For specific warranty terms, registration, or to obtain technical support, please refer to the warranty card included in your package or visit the official LUCORB website. Please have your model number (RC12BR) and purchase information ready when contacting support.
For further assistance, please contact LUCORB Customer Service:
- Website: LUCORB Official Store
- Email: (Refer to product packaging or official website)
- Phone: (Refer to product packaging or official website)
