Includes a metal locking knob to secure angles at any position and an auto off function to save battery life, powered by 3V battery Supports full 360 degree measurement for inside and outside angles, perfect for complex angles measurements in construction and woodworking Made from robust stainless steel for long lasting and resistance to wear, ensuring reliability in various working conditions Suitable for professional and enthusiasts, widely used in construction, furniture assembly, and mechanical manufacturing for precise angles and length measurements Features high accuracy digital display with clear LCD screen for easy readings, ideal for carpentry and engineering projects, Manufacturer: Oxxggkao