1. Introduction
Thank you for choosing the SHAHE 5521-3 Foldable Digital Angle Measuring Tool. This versatile instrument is designed for precise angle measurements in various applications, including carpentry, woodworking, construction, and home improvement. Its unique foldable design, digital display, and integrated features ensure accuracy and convenience. Please read this manual thoroughly before using the device to ensure safe and optimal performance.
2. Product Overview
The SHAHE 5521-3 is a multi-functional, three-section foldable level that can be configured as a compact block for storage or extended into a straight ruler for diverse measurement tasks. It features a dual-axis digital display, highly accurate acrylic level bubbles, and magnetic bases for secure attachment to metallic surfaces.
Figure 2.1: SHAHE Foldable Digital Angle Measuring Tool in various configurations.
Key Features:
- Foldable Design: Three sections allow for compact storage and flexible extension for various measurement needs.
- Dual-Axis Digital Display: Provides precise angle readings for both uniaxial and biaxial measurements.
- Integrated Bubble Levels: Equipped with highly accurate acrylic level bubbles for traditional leveling.
- Magnetic Base: Strong magnets along the edges allow for convenient attachment to metal workpieces.
- LED Screen: Clear and visible display, even in dimly lit environments.
- Buzzer Function: Audible alarm at key angles (0°, 30°, 45°, 60°, 90° ±1°).
- Multiple Units: Switch between degrees (°), percentage (%), and mm/m.
- Absolute and Relative Measurement: Easily measure angles relative to a set zero point or an absolute horizontal plane.
- Automatic Screen Flipping: Display value automatically adjusts when the tool is mounted upside down.
- Automatic Shutdown: Powers off after 3 minutes of inactivity to conserve battery life.
- Durable Construction: Made of high-quality aluminum profile, ensuring rust resistance and longevity.
Figure 2.2: Product dimensions (150mm x 70mm when folded) and display modes.
Figure 2.3: Demonstrating multi-angle measurement capabilities.
Figure 2.4: Automatic screen flipping for inverted measurements.
Video 2.1: Product unboxing and demonstration of features.
3. Specifications
Figure 3.1: Technical parameters of the SHAHE 5521-3.
| Parameter | Value |
|---|---|
| Model Number | 5521-3 |
| Measuring Range | Uniaxial 4x 90° (0-360°), Biaxial ±60° |
| Accuracy | Uniaxial ±0.2°, Biaxial ±0.3° |
| Resolution | 0.1° |
| Repeatability | 0.1° |
| Power Supply | 2 x AAA Battery (not included) |
| Use Environment | 0-40℃ (humidity not more than 80%) |
| Magnet | Yes, magnetic adsorption measuring surface |
| Benchmark | Absolute zero measurement based on horizontal plane |
| Folded Dimensions (approx.) | 150mm (Length) x 70mm (Width) |
Figure 3.2: Detailed dimensions of the folded tool.
4. Setup
4.1 Battery Installation
- Locate the battery compartment cover on the back of the device.
- Use a small screwdriver (often included) to open the battery compartment.
- Insert two (2) AAA batteries, ensuring correct polarity (+/-).
- Close the battery compartment cover securely.
Important: Batteries are not included in the package. Please use new AAA batteries for optimal performance.
5. Operation
5.1 Power On/Off
- Press the Power button (
) to turn the device ON. - Press and hold the Power button to turn the device OFF.
- The device will automatically shut down after 3 minutes of inactivity to save power.
5.2 Unit Selection
- Briefly press the MODE button to cycle through the measurement units: degrees (°), percentage (%), and mm/m.
5.3 Zeroing (Relative Measurement)
- Place the tool on the desired reference surface.
- Press the ZERO button to set the current position as 0.0°. All subsequent measurements will be relative to this new zero point.
- To return to absolute measurement mode, press the ZERO button again.
5.4 Hold Function
- During measurement, briefly press the HOLD button to freeze the current reading on the display.
- Press the HOLD button again to release the reading and resume live measurement.
5.5 Buzzer Alarm
- The device features an audible buzzer alarm that activates when the measured angle is within ±1° of 0°, 30°, 45°, 60°, or 90°. This is useful for quickly finding common angles without constantly looking at the display.
5.6 Screen Flipping
- The digital display automatically flips its orientation when the tool is used upside down, ensuring readability from any position.
5.7 Using the Foldable Design
- The three sections of the level can be articulated to measure various angles, including internal and external corners.
- To extend the level, gently pull the sections apart. To fold, push them together until they lock into a compact form.
Figure 5.1: The flexible foldable design allows for various configurations.
5.8 Magnetic Base Usage
- The integrated magnets on the measuring surfaces allow the tool to be securely attached to ferrous metal surfaces, freeing your hands for other tasks.
Figure 5.2: Magnetic base for hands-free operation.
6. Maintenance
- Keep the device clean and dry. Wipe the surfaces with a soft, dry cloth. Do not use abrasive cleaners or solvents.
- Avoid exposing the device to extreme temperatures, high humidity, or direct sunlight.
- When not in use for extended periods, remove the batteries to prevent leakage and damage.
- Store the tool in its original packaging or a protective case to prevent damage.
7. Troubleshooting
- Display not turning on: Check if the batteries are installed correctly and have sufficient charge. Replace batteries if necessary.
- Inaccurate readings: Ensure the measuring surface is clean and free of debris. Recalibrate by performing a zero-point setting on a known level surface.
- Buzzer not sounding: Check if the device is within the specified angle range for the buzzer to activate (e.g., 0° ±1°).
- Screen not flipping: Ensure the device is being held in a position that triggers the automatic flip (e.g., completely upside down).
8. User Tips
- For best accuracy, always ensure the tool is placed firmly and stably on the surface being measured.
- Utilize the magnetic base for hands-free operation when working with metal components, which can significantly improve efficiency and stability.
- The automatic shutdown feature is great for battery saving, but remember to turn the device off manually if you're done with a task and don't want to wait for the auto-off.
- When measuring complex angles, use the relative measurement mode to set a custom zero point, simplifying subsequent calculations.
9. Warranty and Support
SHAHE products are manufactured to high-quality standards. For any questions, technical assistance, or warranty claims, please contact your retailer or the manufacturer's customer support. Keep your purchase receipt as proof of purchase.
