Features: 2 in 1 digital angle finder, inch and mm scale ruler, easy to measure internal and external angles. display Clear LCD, easy to check measured values at a glance. Measuring range : 0-999.9, accuracy 0.2. Zero button reset function, short press HOLD button to hold data and long press to reverse display. With button lock to adjust the tightness of the ruler at any angle. Made of stainless steel and ABS, strong and superior for long service life. Compact structure for carrying and using practical. Suitable for woodworking, construction, drawing and other fields. Features: Material: Stainless steel + ABS Color: Silver Measuring range: 0-999.9 Resolution: 0.05 Accuracy: 0.2 Repeatability: 0.05 Total length: 400 mm Power supply: 1 * 3V CR2032 button battery Item weight: 173?g / 6.1?oz Package size: 26.5 * 8.0 * 3.0 cm / 10.4 * 3.1 * 1.2 inch Package Weight: 207g/7.3oz Package List: 1 * Digital Angle Ruler 1 * CR2032 Battery