LCD digital angle protractor with 360-degree measurement and lock func

Supports full 360-degree measurement for inside and outside angles, perfect for complex angle measurements in construction and woodworking. Includes a metal locking button to secure angles in any position and an auto-off function to conserve battery power; powered by a 3V battery. Features a high-precision digital display with a clear LCD screen for easy reading, ideal for woodworking and engineering projects. Suitable for professionals and hobbyists, widely used in construction, furniture assembly, and mechanical manufacturing for accurate angle and length measurements. Made of robust stainless steel for long life and wear resistance, ensuring reliability in various working conditions.