Product Overview
The Huepar HM03CG 3x360 Green Laser Level is a versatile tool designed for precision leveling and alignment tasks. It features a brighter green laser unit, offering enhanced visibility and stability across various temperatures. Constructed from durable ABS and covered with TPR soft rubber, the device provides a comfortable grip and robust protection.
This laser level projects one 360° horizontal line and two 360° vertical lines, allowing for comprehensive room coverage. Users can easily activate or deactivate individual laser lines using the dedicated H & V buttons on the keypad. With a working range of up to 98 feet (100LUX) and an accuracy of ±1/9" at 33 feet, it is suitable for a wide array of indoor and outdoor applications. The Outdoor Pulse Mode extends the working range up to 200 feet when paired with Huepar Laser Detectors (sold separately), which is recommended for bright-light conditions or outdoor use.
The HM03CG supports both self-leveling and manual modes. In self-leveling mode, the pendulum unlocks and the tool automatically levels within 3°. If the device is outside this range, the laser will flash to indicate an unlevel state. Locking the pendulum enables manual mode, allowing for alignment at various angles to suit specific project requirements.
Powering the device is a built-in 3.7V 4000mAh Li-ion battery, providing up to 8 hours of continuous operation. The battery features four indicators to display the current charge status and includes charging protection against overcharging. Convenient Type-C charging allows the device to be powered by laptops, power banks, or car chargers.
For mounting, the laser level includes a 1/4"-20 thread at the bottom for tripod compatibility. It also comes with a 360° strong magnetic bracket, equipped with 1/4"-20 & 5/8"-11 mount threads and two nail holes, offering multiple secure attachment methods to metallic surfaces or walls. The entire kit is housed in a portable hard carry case for easy transport and storage, making it an ideal tool for home projects, construction, picture hanging, and wallpaper installation.
Package Contents
The Huepar HM03CG Laser Level kit includes the following items:
- 1 x HM03CG Laser Level
- 1 x Magnetic Bracket
- 1 x Hard Carry Case
- 1 x Type-C Charging Cord

Setup and Mounting
Battery Installation and Charging
The HM03CG is powered by a built-in 3.7V 4000mAh Li-ion battery. To charge the device, connect the provided Type-C charging cord to the charging port on the laser level. The four battery indicators will show the current charge status. Ensure the device is fully charged before initial use for optimal performance.

Mounting Options
The HM03CG offers flexible mounting solutions:
- Tripod Mounting: The bottom of the laser level features a 1/4"-20 mounting thread, allowing it to be securely attached to a standard tripod.
- Magnetic Bracket: The included 360° strong magnetic bracket provides versatile attachment to metallic surfaces. It also includes 1/4"-20 & 5/8"-11 mount threads for compatibility with various tripods and two nail holes for wall mounting.

Operating Modes
Self-Leveling Mode
To activate self-leveling mode, unlock the pendulum. The laser level will automatically self-level within 3°. If the device is placed on a surface that is unlevel beyond this 3° range, the laser lines will flash continuously to alert the user. This mode is ideal for achieving accurate horizontal and vertical lines for standard leveling tasks.
Manual Mode
For applications requiring projection of non-level lines, such as installing handrails or decorative elements on an incline, lock the pendulum. This disables the self-leveling function and allows the user to position the laser lines at any desired angle. In manual mode, the laser lines will flash every 3-5 seconds to indicate that it is not in a self-leveling state.

Pulse Mode
When working in bright ambient light conditions or outdoors where laser lines may be difficult to see, activate the Pulse Mode. This mode allows the laser level to be used with a Huepar Laser Detector (sold separately), extending the working range up to 200 feet. To activate Pulse Mode, press and hold the 'P' button on the keypad for 2 seconds. The pulse mode indicator light will illuminate.

Laser Line Selection
The HM03CG projects one 360° horizontal line and two 360° vertical lines. Use the 'H' button to cycle through horizontal line combinations and the 'V' button to cycle through vertical line combinations. This allows you to select the specific lines needed for your task.

Remote Control Operation
The HM03CG can be operated remotely, allowing for convenient control of laser lines and modes from a distance. This is particularly useful when the device is mounted in hard-to-reach areas.
Video: A detailed instruction video for the Huepar HX03C-PRO laser level, demonstrating its features and operation, including the remote control function for precise adjustments.
Specifications
| Feature | Detail |
|---|---|
| Brand | Huepar |
| Model | HM03CG |
| Material | Acrylonitrile Butadiene Styrene, Thermoplastic Elastomers |
| Color | Green |
| Laser Class | Class II |
| Laser Wavelength | 505-520nm |
| Horizontal/Vertical Accuracy | ±1/9" at 33 Feet |
| Leveling/Compensation Range | 3° |
| Working Distance (Line) | 98 Feet (100LUX) |
| Working Distance (with Detector) | 200 Feet |
| Power Source | 3.7V 4000mAh Li-ion Battery |
| Continuous Working Time | 8 Hours |
| Mounting Thread | 1/4"-20 (device), 1/4"-20 & 5/8"-11 (bracket) |
| Operation Mode | Off, Slide Switch |
Maintenance
- Keep the laser level clean, especially the laser windows. Use a soft, dry cloth to wipe away dust and debris.
- Store the device in its hard carry case when not in use to protect it from impacts and environmental factors.
- Avoid exposing the laser level to extreme temperatures or direct sunlight for prolonged periods.
- Regularly check the battery charge and recharge as needed to maintain optimal performance.
Troubleshooting
- Laser lines flashing in self-leveling mode: This indicates the device is outside its 3° self-leveling range. Adjust the position of the laser level until the lines stop flashing and become steady.
- Laser lines dim or invisible outdoors: Activate Pulse Mode and use a compatible Huepar Laser Detector to extend the working range and improve visibility.
- Battery not holding charge: Ensure the Type-C charging cable is securely connected and the power source is functional. If issues persist, contact customer support.
- Inaccurate readings: Ensure the device is on a stable surface and within its self-leveling range. If manual mode is used, verify the desired angle is correctly set.
Warranty and Support
Huepar is dedicated to providing excellent customer service. The HM03CG laser level comes with a 5-year warranty for the device and a 2-year warranty for the battery (covering non-human damage). In the first year, a brand-new full set (device, battery, accessories) will be replaced free of charge. For years 2-5, free replacement with a refurbished or equivalent unit is offered for any non-repairable issues.
Lifetime technical support is available, with a 24/7 service team committed to responding within 24 hours and providing a solution within 48 hours. Worldwide maintenance centers ensure faster repair or replacement services.