Versatile Digital Angle Gauge: The PREXISO digital torpedo level shows angle and bevel readings in multiple units (° / mm/m / % slope / in/ft) with selectable 0–90° and 0–180° ranges. Achieves precise measurements with ±0.1° accuracy at 0–90° and ±0.2° for other angles Dual Measurement Modes: Absolute & Relative Measurement . This magnetic angle finder delivers precise absolute measurements against the horizonta plane, while its relative mode quickly checks angles between two surfaces—ensuring accurate leveling and alignment for any project Automatic Inversion & Audio Alert: The digital inclinometer automatically reverses the display when flipped upside down. Backlit, ultra-clear screen allows work in low-light conditions, and the built-in audio alert helps you quickly identify 0° and 90° angles by sound V-Groove Magnetic Base: Equipped with a magnetic V-groove base, this digital protractor securely attaches to metal surfaces, including pipes, steel structures, and fabrications. Its sturdy aluminum frame guarantees accurate and stable leveling results Portable & Wide Application: This mini torpedo level tool measures just 175mm and weighs only 200g, making it easy to carry anywhere. Ideal for woodworking, welding, fabrication, construction, machinery, home renovation, automotive projects, and general leveling tasks, Weight: 0.440924524 pounds, Manufacturer: Hang Zhou Great Star Industrial Co.,LTD