Introduction
The LasGoo LG-REC01 Laser Receiver is designed to enhance the functionality of your pulsing line laser levels, providing extended working range and improved accuracy in various lighting conditions. This manual provides detailed instructions for the proper setup, operation, and maintenance of your device to ensure optimal performance and longevity.
Package Contents
Please check the package contents upon receipt to ensure all items are present:
- 1x LG-REC01 Laser Receiver
- 1x Type-C Cable
- 1x Clamp Bracket
- 1x User Manual (this document)
Product Overview
The LG-REC01 Laser Receiver is engineered for precision and ease of use. Key features include:
Dual Precision Modes
Switch between high precision mode (±2mm) for critical tasks and low precision mode (±3mm) for general applications, offering flexibility for various job requirements.

Image: The LasGoo LG-REC01 Laser Receiver highlighting its dual precision modes, offering both high (±2mm) and low (±3mm) accuracy settings.
Compatible with Red and Green Lasers
The receiver is designed to detect both red and green laser signals with a pulse frequency of 10 KHz. Ensure your laser level is set to pulse mode for proper detection. It operates effectively up to 50 meters (164 feet) in open spaces.
Dual Displays and Dual Bubble Levels
Equipped with LCD displays on both the front and back, the receiver allows for easy reading from any angle. Integrated bubble levels on the front and top provide additional visual cues for accurate leveling.

Image: The LasGoo LG-REC01 Laser Receiver featuring its double-sided LCD readouts and two integrated bubble levels for enhanced visibility and accuracy.
Optical and Acoustic Detection
The receiver provides clear visual indicator lights on the screen, complemented by an adjustable speaker that emits distinct sounds. These combined signals help you quickly and accurately locate the laser plane.
Built-in Rechargeable Battery with Type-C Charging
The LG-REC01 features a built-in rechargeable battery, offering up to 20 hours of continuous operation on a full charge. It supports convenient Type-C charging.

Image: The LasGoo LG-REC01 Laser Receiver being charged via a Type-C cable, illustrating its long-lasting 20-hour battery life.
Auxiliary Clamp Bracket
The included clamp bracket allows for easy attachment of the receiver to a measuring rod, pole, or other suitable objects, providing versatile mounting options for various applications.

Image: The LasGoo LG-REC01 Laser Receiver demonstrating its auxiliary clamp bracket for secure attachment to various surfaces, including a measuring rod.
Setup
1. Charging the Receiver
- Connect the provided Type-C cable to the charging port on the side of the LG-REC01 receiver.
- Connect the other end of the cable to a standard USB power adapter (not included).
- The battery indicator on the display will show charging status. A full charge typically provides up to 20 hours of use.
2. Attaching the Clamp Bracket
- Align the receiver with the clamp bracket.
- Secure the receiver to the clamp by tightening the knob on the bracket.
- Attach the clamp to a measuring rod, pole, or other stable surface. Ensure it is securely fastened.
3. Preparing Your Laser Level
Important: The LG-REC01 Laser Receiver is designed to work exclusively with pulsing line laser levels. Before use, ensure your laser level is switched to pulse mode. Refer to your laser level's instruction manual for details on activating pulse mode.
- Compatible LasGoo Models: LG-3Ds, LG-3Dx, LG-3DM, LG-3DMAX, LG-4D, LG-RS5, etc.
- Incompatible LasGoo Models: LG-CROSS, LG-3D, 3D-RS12.
Operating Instructions
1. Powering On/Off
- Press the power button (ⓘ) to turn the receiver on.
- Press and hold the power button for 2 seconds to turn the receiver off.
- The receiver will automatically shut down after 10 minutes of inactivity to conserve battery.
2. Switching Precision Modes
- Short press the precision mode button (⇅) to toggle between high precision (±2mm) and low precision (±3mm) modes.
- The active precision mode will be indicated on the LCD display.
3. Adjusting Speaker Volume
- Press the speaker button (🔊) to cycle through different volume levels or mute the audio feedback.
4. Detecting the Laser Beam
Position the receiver in the path of the pulsing laser beam. The LCD displays and audible signals will guide you to the laser plane.
- Visual Indication:
- If the laser beam is above the center mark, the upper indicator lights will illuminate, and the display will show an arrow pointing downwards.
- If the laser beam is below the center mark, the lower indicator lights will illuminate, and the display will show an arrow pointing upwards.
- When the laser beam is aligned with the center mark, the center indicator lights will illuminate, and the display will show a horizontal line.
- Audible Indication:
- A fast beep sound indicates the receiver needs to be moved upwards.
- A slow beep sound indicates the receiver needs to be moved downwards.
- A steady tone indicates the receiver is perfectly aligned with the laser beam.

Image: The LasGoo LG-REC01 Laser Receiver illustrating how to move the receiver based on visual indicator lights for precise laser beam alignment.

Image: The LasGoo LG-REC01 Laser Receiver demonstrating how to adjust its position based on different audible tones for accurate laser beam detection.
Maintenance
- Keep the receiver clean and free from dust and debris. Use a soft, dry cloth for cleaning.
- Avoid exposing the device to extreme temperatures or direct sunlight for prolonged periods.
- Store the receiver in its protective packaging when not in use.
- Do not attempt to disassemble or repair the device yourself. Contact customer support for assistance.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Receiver not detecting laser beam. | Laser level not in pulse mode. | Ensure your laser level is set to pulse mode. |
| Receiver is too far from the laser level. | Move the receiver closer to the laser level (within 50m range). | |
| Low battery. | Recharge the receiver's battery using the Type-C cable. | |
| Inaccurate readings. | Receiver not level. | Use the built-in bubble levels to ensure the receiver is perfectly level. |
| No sound from speaker. | Speaker volume is muted or too low. | Press the speaker button to adjust the volume. |
Specifications
| Model | LG-REC01 |
| Brand | LASGOO |
| Material | Metal, Plastic |
| Precision Modes | High: ±2mm, Low: ±3mm |
| Laser Compatibility | Green & Red Pulsing Line Lasers (10 KHz frequency) |
| Working Distance | Up to 50m (164ft) |
| Display | Dual LCD Displays (front & back) |
| Leveling Aids | Dual Bubble Levels (front & top) |
| Detection Feedback | Optical (indicator lights) & Acoustic (adjustable speaker) |
| Battery Type | Built-in Rechargeable Battery |
| Charging Port | Type-C |
| Included Accessories | Type-C Cable, Clamp Bracket |
Warranty and Support
For warranty information or technical support, please refer to the warranty card included with your product or visit the official LASGOO website. Our customer service team is available to assist you with any questions or concerns regarding your LG-REC01 Laser Receiver.
Each item has a unique code that we verify before shipping, ensuring product authenticity and quality.