1. Introduction
This manual provides comprehensive instructions for the setup, operation, and maintenance of your LUCORB Gym Timer RC15BR. Please read this manual thoroughly before using the device to ensure proper function and longevity. Keep this manual for future reference.
2. Product Overview
2.1 Key Features
- Large LED Display: 15-inch timer with 2.9-inch digits for clear visibility.
- Adjustable Brightness: 6 levels of brightness with an automatic dimming sensor.
- Workout Progress Bar: Visual indicator for interval training progress.
- Multi-Functional Modes: Includes 12/24H clock, countdown timer, count-up timer, stopwatch, interval timer, and alarm clock.
- Preset & Custom Programs: 4 preset modes (Tabata, HIIT, FGB1/2) and 9 customizable interval training plans.
- EMOM Support: Independent 'loop' button for EMOM (Every Minute On the Minute) countdown, supporting up to 99 loops.
- Remote Control: Convenient operation with an included remote control.
- Flexible Placement: Designed for both wall mounting and stable tabletop standing.
2.2 Package Contents
Verify that all items are present in the package:
- LUCORB Gym Timer RC15BR
- Remote Control
- USB-C Power Adapter
- USB-C Cable
- Mounting Screws (2x) and Wall Anchors (2x)
- User Manual (this document)

Image: LUCORB Gym Timer RC15BR, remote control, USB-C power adapter, USB-C cable, and mounting hardware.
3. Setup
3.1 Powering On
The LUCORB Gym Timer RC15BR requires continuous power via the included USB-C adapter. Connect the USB-C cable to the timer's Type-C port and plug the adapter into a standard electrical outlet. The timer is not battery-operated for primary function; the internal battery only serves as a backup for storing settings during a power outage.

Image: The gym timer connected to a wall outlet via its USB-C adapter. Text indicates it is USB powered and not battery operated for primary function.
3.2 Mounting Options
The timer can be either wall-mounted or placed on a flat surface.
- Wall Mounting: Use the two keyholes on the back of the timer. Mark the desired position on the wall, drill holes, insert wall anchors, and secure with the provided screws. Hang the timer onto the screws.
- Tabletop Standing: The widened bottom design allows the timer to stand steadily on a table or shelf.

Image: A gym timer shown mounted on a wall in a gym setting and placed on a table in a home setting, illustrating both mounting options.

Image: Rear view of the gym timer, highlighting the battery backup box, speaker positions, mounting holes, buttons, and Type-C port.
4. Operating Instructions
4.1 Remote Control
The timer is operated using the included remote control. Familiarize yourself with the button layout for efficient use.

Image: The gym timer displaying 'LP 01:00' with its remote control, illustrating the primary control method.
4.2 Display Brightness
The timer features 6 levels of adjustable brightness. It also includes a built-in automatic dimming sensor that adjusts brightness based on ambient light conditions for optimal visibility.

Image: The gym timer displaying 'TA 04:00', with an illustration of its 6-level custom brightness and auto-brightness feature.
4.3 Volume Adjustment
The timer offers 4 levels of volume adjustment, along with a mute option. This allows you to set the alert volume according to your environment.

Image: A graphic depicting a speaker icon with musical notes, illustrating the adjustable volume levels of the timer.
4.4 Timer Modes
The LUCORB Gym Timer supports various operational modes:
- 12/24H Clock: Displays current time.
- Countdown Timer: Counts down from a set time.
- Count-up Timer: Counts up from zero.
- Stopwatch: Measures elapsed time.
- Alarm Clock: Set alarms for specific times.
- Interval Timer: Program custom workout and rest periods.
4.4.1 Interval Training with Progress Bar
In interval workout mode, the display shows the current round number on the left and the time remaining for the current round in the center. A progress bar on the right visually indicates the advancement of your workout within the current round.
The timer includes 4 preset interval modes (Tabata, HIIT, FGB1, FGB2) and allows for 9 customizable interval training plans (P1-P9). Additionally, the independent 'loop' function supports EMOM (Every Minute On the Minute) countdowns for up to 99 loops.

Image: The gym timer displaying '12:06:35', with labels pointing to 'Current rounds', 'Time left of each round', and 'Time progress bar'. A person is shown performing crunches in the foreground.
5. Maintenance
To ensure the longevity and proper functioning of your LUCORB Gym Timer, follow these maintenance guidelines:
- Cleaning: Wipe the display and casing with a soft, dry cloth. Avoid abrasive cleaners or solvents, which can damage the surface.
- Power Supply: Always use the provided USB-C power adapter and cable. Ensure the power connection is secure.
- Environment: Keep the timer in a dry environment. Avoid exposure to extreme temperatures, direct sunlight for prolonged periods, or high humidity.
- Battery Backup: The internal battery is for settings retention only. It does not power the main display. If settings are frequently lost after power outages, the internal battery may need service.
6. Troubleshooting
If you encounter issues with your gym timer, refer to the following common problems and solutions:
- Timer does not power on:
- Ensure the USB-C cable is securely connected to both the timer and the power adapter.
- Verify the power adapter is firmly plugged into a working electrical outlet.
- Confirm the power outlet is active by testing it with another device.
- Remote control is unresponsive:
- Check if the remote control's battery is depleted and replace it if necessary.
- Ensure there are no obstructions between the remote control and the timer's infrared receiver.
- Point the remote directly at the timer.
- Settings are lost after power outage:
- The internal backup battery may be low or require replacement. Contact customer support if this issue persists.
- Display is too dim or too bright:
- Adjust the brightness manually using the remote control.
- Ensure the automatic dimming sensor is not obstructed.
7. Specifications
| Feature | Detail |
|---|---|
| Model Number | RC15BR |
| Brand | LUCORB |
| Color | Black+red |
| Material | Plastic |
| Product Dimensions | 1.18"D x 15"W x 4"H |
| Item Weight | 0.72 Pounds (11.5 ounces) |
| Screen Size | 15 Inches |
| Digit Height | 2.9 Inches |
| Number of Settings | 14 (various modes and programs) |
| Power Source | USB-C (Adapter Included) |
| Backup Battery | 1 C battery required (included, for settings retention only) |
8. Warranty and Support
The LUCORB Gym Timer RC15BR comes with a 1-year limited warranty from the date of purchase, covering manufacturing defects. This warranty does not cover damage caused by misuse, accidents, unauthorized modifications, or normal wear and tear.
For technical support, warranty claims, or any questions regarding your product, please contact LUCORB customer service through the retailer's platform or visit the official LUCORB brand store.
LUCORB Brand Store: https://www.amazon.com/stores/LUCORB/page/B5A7242A-E5DA-4308-B9B7-DB251B6045E3
