Uni-T LM320E Digital Protractor with Laser, 4×90° Measurement Range, ±0.2° Accuracy, Magnetic Base, Rechargeable

The Uni-T LM320E Digital Protractor is a high-precision angle measurement tool designed for professionals in construction, carpentry, and metalworking. Equipped with dual laser lines and a magnetic base, it enables accurate alignment and layout on ferromagnetic surfaces. The device features a 4×90° measurement range with ±0.2° accuracy and supports multiple units (°, %, mm/m, in/ft). Its backlit LCD screen automatically rotates for easy reading, and the built-in 1000 mAh rechargeable battery provides up to 8 hours of continuous operation.

Advantages

Laser-guided precision for quick reference lines, magnetic mounting for hands-free use, and versatile measurement modes (absolute/relative) make this protractor ideal for demanding jobs. The compact design and USB-C charging add convenience.

Suitable for

• Construction and framing
• Carpentry and woodworking
• Metal fabrication
• HVAC installation
• DIY home improvement

Key specifications

• Measurement range: 4 × 90° (0-360°)
• Accuracy: ±0.2°
• Resolution: 0.05°
• Laser lines: 2 (Class 2, <1 mW)
• Laser accuracy: ±3 mm / 5 m
• Units: °, %, mm/m, in/ft
• Base: Double-sided magnetic
• Power: 1000 mAh rechargeable battery (USB-C)
• Operating time: Up to 8 h
• Dimensions: 83.5 × 70 × 35.5 mm
• Weight: 180 g
• Certifications: CE, RoHS

Recommendations

For best results, calibrate the protractor on a flat surface before first use. The magnetic base is strong enough for vertical steel beams. Use the laser for long-distance alignment; the backlight ensures readability in low light.