1. Introduction
The ATuMan LS6 is a versatile 3-in-1 laser distance meter designed for high-precision measurements. It combines distance measurement, laser line projection, and angle detection into a single compact device. With its advanced features and user-friendly interface, the LS6 is ideal for various applications in home improvement, construction, and professional settings.
This manual provides detailed instructions on how to set up, operate, and maintain your ATuMan LS6 Laser Distance Meter to ensure optimal performance and longevity.
2. Package Contents
Please check the box for the following items:
- 1 x ATuMan LS6 Laser Distance Meter
- 1 x USB Type-C Charging Cable
- 1 x Lanyard
- 1 x User Manual (this document)

3. Key Features
- High Precision: Accurately measures distances up to 131 feet (40m) with an impressive +/- 1/16 inch (±2mm) accuracy.
- Versatile 3-in-1 Design: Combines laser distance measurement, laser line projection, and angle detection for precise and simultaneous use. Ideal for pinpoint angle positioning and leveling at specific distances.
- 19+ Measurement Functions: Includes single distance, continuous measurement, area, volume, Pythagorean theorem (single and double), vertical angle, horizontal angle, direct line of sight, pre-baseline, backward-looking, minimum/maximum values, data storage, unit switching, automatic shutdown, lock screen, luminance, precision, and language switching.
- TFT Color Display: Features a low-power consumption TFT high-definition color display for clearer reading. Different colors effectively distinguish important data, providing a comfortable and clear view at a glance.
- Data Storage: Supports saving and retrieving up to 20 sets of measurements for efficient data management.
- Unit Switching: Easily switch between measurement units (meters, inches, feet).
- Long Battery Life: Equipped with a 300mAh high-capacity rechargeable lithium battery, supporting Type-C charging for extended use.
- Durable Construction: Made with an aerospace aluminum body, one-piece die-casting molding, and a three-times baking paint process for a delicate frosted texture that resists fingerprints.
- Compact and Portable: Lightweight and compact design (100*33.5*16.5 mm, 62g) with comfortable silicone buttons, making it easy to carry and operate with one hand.



4. Specifications
| Attribute | Value |
|---|---|
| Product Name | LS6 Laser Line Throw Distance Measuring Instrument |
| Brand Name | XMSJ (ATuMan) |
| Model Number | LS6 |
| Product Size | 100*33.5*16.5 mm |
| Net Weight | 62g |
| Main Material | Aluminum alloy |
| Measuring Range | 0-40m (131 feet) |
| Measurement Accuracy | ±2mm (±1/16 inch) |
| Measuring Unit | m/in/ft |
| Battery Capacity | 300mAh |
| Power Type | Rechargeable (USB Type-C) |
| Battery Included | Yes |
| Laser Hazard Level | Class 1 (<1mW) |
| Laser Output | 0.081mW |
| Laser Type | 520nm±10nm |
| High-concerned chemical | None |

5. Safety Information
Please read and understand all safety information before using this product. Failure to follow these instructions may result in laser exposure, electric shock, fire, or serious injury.
- Laser Safety: This device emits a Class 1 laser. Do not stare directly into the laser beam or direct it at other people's eyes. Avoid pointing the laser at highly reflective surfaces.
- Children: Keep the device out of reach of children.
- Operating Environment: Do not operate the device in explosive atmospheres, such as in the presence of flammable liquids, gases, or dust.
- Maintenance: Do not attempt to modify or repair the device yourself. Refer all servicing to qualified personnel.
- Battery Safety: Use only the provided charging cable. Do not expose the device to extreme temperatures or dispose of it in fire.
6. Setup
6.1 Charging the Device
The ATuMan LS6 comes with a built-in 300mAh rechargeable lithium battery. Before first use, or when the battery indicator shows low power, charge the device using the provided USB Type-C cable.
- Connect the USB Type-C cable to the charging port on the side of the device.
- Connect the other end of the cable to a standard USB power adapter (not included) or a computer's USB port.
- The battery indicator on the display will show the charging status. A full charge typically takes a few hours.

6.2 Powering On/Off
- Power On: Press and hold the main button (usually the central square button) for a few seconds until the display lights up.
- Power Off: Press and hold the main button again for a few seconds. The device also features an automatic shutdown function after 180 seconds of inactivity to conserve battery.
7. Operating Instructions
The ATuMan LS6 features a simple UI and is easy to control with one hand. The TFT color display provides clear and intuitive readings.

7.1 Basic Distance Measurement
- Power on the device.
- Point the laser beam at the target surface.
- Press the main button once to initiate a measurement. The distance will be displayed on the screen.
7.2 Laser Line Projection (One-Word Throw Mode)
This mode allows you to project a horizontal or vertical laser line for alignment and leveling.
- Select the laser line projection mode (refer to the device's on-screen icons for mode selection).
- Place the device on a stable surface or hold it against the wall.
- The device will project a clear laser line, assisting with tasks like hanging pictures or installing shelves.

7.3 Angle Measurement
The LS6 can measure both horizontal and vertical angles.
- Select the desired angle measurement mode.
- Position the device to measure the angle. The angle will be displayed on the screen.
- This feature can be combined with distance measurement for advanced applications.

7.4 Area and Volume Measurement
The device can automatically calculate area and volume after taking the necessary length measurements.
- Select the Area or Volume measurement mode.
- Follow the on-screen prompts to measure the required dimensions (length, width, height).
- The device will automatically calculate and display the area or volume.

7.5 Unit Switching
To switch between meters (m), inches (in), and feet (ft):
- Locate the unit switching button or option in the menu (refer to the icons in Figure 3.3).
- Press the button to cycle through the available units.

7.6 Other Functions
The device includes additional functions such as:
- Data Storage: Save and recall up to 20 measurement sets.
- Automatic Shutdown: Device powers off after 180 seconds of inactivity.
- Lock Screen: Prevents accidental button presses.
- Luminance: Adjust screen brightness.
- Precision: Fine-tune measurement settings.
- Language Switching: Change the display language.
8. Maintenance
8.1 Cleaning
- Use a soft, damp cloth to clean the device's exterior.
- Do not use abrasive cleaners, solvents, or harsh chemicals.
- For the laser lens, use a soft, lint-free cloth specifically designed for optics.
8.2 Storage
- Store the device in a cool, dry place away from direct sunlight and extreme temperatures.
- If storing for an extended period, ensure the battery is partially charged (around 50%) to prolong its lifespan.
9. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Device does not power on | Low battery; Device malfunction | Charge the device fully. If problem persists, contact support. |
| Inaccurate measurements | Obstruction in laser path; Unstable surface; Environmental factors (e.g., strong light) | Ensure clear laser path. Use on a stable surface. Avoid strong light sources. Clean the laser lens. |
| Laser beam not visible | Strong ambient light; Laser mode not active | Use in lower light conditions. Ensure correct mode is selected. |
| Screen is blank or frozen | Software error; Low battery | Recharge the device. Try a soft reset by holding the power button for an extended period (e.g., 10-15 seconds). |
10. User Tips
- For best accuracy, ensure the device is held steady and the target surface is flat and perpendicular to the laser beam.
- When measuring long distances or in bright conditions, use a reflective target plate (not included) to improve laser visibility and accuracy.
- Utilize the data storage function to keep track of multiple measurements, especially for complex projects.
- Experiment with different measurement modes to find the most efficient method for your specific task.
11. Warranty and Support
Your ATuMan LS6 Laser Distance Meter is covered by a standard manufacturer's warranty against defects in materials and workmanship. Please retain your proof of purchase for warranty claims.
For technical support, troubleshooting assistance, or warranty inquiries, please contact the seller or manufacturer directly through the platform where the product was purchased.