1. Introduction
Thank you for choosing the coobeast Digital Angle Finder with Green Laser. This versatile tool combines the functions of a digital level, an angle finder, and a laser tool, designed for precise measurements in various applications, including woodworking and construction. Featuring dual high-intensity green lasers, strong magnetic attachment on four sides, and a clear backlit LCD display, this device offers accuracy and ease of use. Please read this manual thoroughly before operation to ensure safe and effective use.
2. Safety Information
- Laser Safety: This product uses a Class II laser with an output of less than 5mW. Avoid direct eye exposure to the laser beam. Do not stare into the laser aperture.
- Battery Safety: The device contains a rechargeable lithium-ion battery. Do not disassemble, puncture, or expose the battery to extreme temperatures or fire. Use only the provided Type-C charging cable or a compatible charger.
- General Use: Keep the device away from children. Do not use the device in explosive atmospheres or near flammable materials. Ensure the device is clean and dry before use, especially given its IP54 rating.
3. Package Contents
Verify that all items are present in your package:
- coobeast Digital Angle Finder with Green Laser
- Type-C Charging Cable
- Black Storage Bag with Belt Loop
- User Manual (this document)
4. Product Overview
Familiarize yourself with the components and controls of your digital angle finder.

Figure 4.1: Product diagram illustrating the Type-C charging port, bilateral laser apertures, LCD display, and control buttons.
- LCD Display: Shows angle measurements, battery status, and mode indicators. Features a backlight for clear visibility.
- ON/OFF Button: Powers the device on or off.
- TILT% Button: Switches between angle (degrees) and slope (percentage) readout.
- HOLD Button: Freezes the current measurement on the display.
- ZERO Button: Sets the current position as the relative zero point for relative angle measurements.
- Laser Apertures: Located on both sides, emitting green laser lines.
- Magnetic Base: Strong magnets on four sides for secure attachment to metal surfaces.
- Type-C Charging Port: For recharging the internal battery.
5. Setup
5.1 Initial Charging
Before first use, fully charge the device. Connect the provided Type-C charging cable to the charging port on the device and to a standard USB power adapter (not included). The battery indicator on the LCD will show charging status. A full charge ensures optimal performance and extended runtime.
5.2 Powering On/Off
Press the ON/OFF button to turn the device on. Press and hold the ON/OFF button again to turn it off. The device may also have an auto-off feature to conserve battery.
6. Operating Instructions
6.1 Absolute and Relative Measurement Modes
The device supports two measurement modes:
- Absolute Measurement Mode: Measures the angle relative to a true horizontal surface (0°).
- Relative Measurement Mode: Allows you to set any surface as a temporary 0° reference point. To activate, place the device on your desired reference surface and press the ZERO button. The display will show 0.00°. Subsequent measurements will be relative to this new zero. Press ZERO again to return to absolute measurement.

Figure 6.1: Illustration of Absolute and Relative Measuring Modes. The device can measure angles relative to a true horizontal or a user-defined zero point.
6.2 Laser Operation
The device features dual green lasers for enhanced visibility and alignment. The lasers can be activated or deactivated by a dedicated button (often integrated with the ON/OFF or a separate laser button, refer to product diagram for specific button). The green laser lines are significantly brighter and more visible than traditional red lasers, making them suitable for various lighting conditions and surfaces.

Figure 6.2: The green laser upgrade provides brighter, crisper lines for improved visibility during alignment tasks.
6.3 Data Hold Function
To freeze the current measurement on the display, press the HOLD button. This is useful for taking readings in awkward positions or tight spaces where direct viewing of the display is difficult. Press the HOLD button again to release the measurement and resume live readings.
6.4 Unit Conversion (Degrees/Percentage)
Press the TILT% button to switch the display between angle measurements in degrees (°) and slope measurements in percentage (%).
6.5 Magnetic Attachment
The device features strong built-in magnets on all four sides, allowing it to be securely attached to metal surfaces, pipes, or saw blades. This enables hands-free operation and ensures stable accuracy during measurements.

Figure 6.3: The 4-sided magnetic attachment allows for secure mounting on various metal surfaces, horizontally or vertically.
6.6 Automated Display Rotation
The LCD display automatically rotates when the tool is inverted, ensuring that the readings are always upright and easy to read from any orientation.

Figure 6.4: The display value automatically flips when the device is mounted upside down, ensuring readability.
7. Calibration
The coobeast Digital Angle Finder is factory-calibrated for accuracy. However, if you suspect the accuracy is compromised (e.g., after a significant impact or prolonged use), recalibration may be necessary. Refer to the detailed instructions provided in the separate calibration guide (if included with your product) or contact customer support for guidance. Typically, recalibration involves placing the device on a known flat surface, zeroing it, rotating it 180 degrees, and following on-screen prompts to adjust the sensor.
8. Maintenance
- Cleaning: Wipe the device with a soft, damp cloth. Do not use abrasive cleaners or solvents. Ensure the laser apertures and display are clean for optimal performance.
- Storage: Store the device in its protective storage bag in a cool, dry place when not in use. Avoid exposing it to extreme temperatures or direct sunlight.
- Battery Care: Recharge the battery regularly, even if the device is not used frequently, to maintain battery health. Avoid fully discharging the battery for extended periods.
- IP54 Rating: The device is IP54 rated, meaning it is protected against dust ingress and splashing water from any direction. While durable, avoid submerging the device in water.

Figure 8.1: The device is built to last with IP54 dustproof and waterproof protection.
9. Troubleshooting
If you encounter issues with your coobeast Digital Angle Finder, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Device does not power on | Low battery; device malfunction | Charge the device fully. If problem persists, contact support. |
| Laser beam is faint or not visible | Low battery; dirty laser aperture; bright ambient light | Charge the device. Clean laser apertures. Use in lower light conditions if possible. |
| Inaccurate readings | Device not calibrated; magnetic interference; surface not stable | Perform recalibration. Ensure no strong magnetic fields are nearby. Place on a stable, flat surface. |
| Display not rotating automatically | Sensor malfunction | Restart the device. If issue continues, contact support. |
10. Specifications
Key technical specifications for the coobeast Digital Angle Finder:
- Measuring Range: 4 x 90° (360°)
- Accuracy: ±0.2°
- Resolution: 0.05°
- Laser Type: Green Laser, Class II, <5mW Output
- Green Laser Accuracy: ±5mm/2m
- Battery: 400mAh Rechargeable Lithium-ion
- Charging Port: Type-C
- Display: Backlit LCD
- Magnetic Attachment: 4-sided strong magnets
- Material: Acrylonitrile Butadiene Styrene (ABS), Aluminum
- Protection Rating: IP54 (Dustproof and Splash-proof)
- Dimensions: Approximately 6.1cm x 6.1cm x 3cm (Compact, palm-sized)

Figure 10.1: The compact design allows for easy storage and portability, fitting in a palm.
11. Warranty and Support
coobeast products are manufactured to high-quality standards. This product comes with a standard manufacturer's warranty against defects in materials and workmanship. For specific warranty terms and conditions, please refer to the warranty card included with your purchase or visit the official coobeast website.
For technical support, troubleshooting assistance, or warranty claims, please contact coobeast customer service through the retailer where the product was purchased or via the contact information provided on the coobeast brand store or official website.