Features: 2 in 1 digital angle finder & inch and mm scale ruler, easy to measure internal and external angles. Clear LCD display, measured values easy to check at a glance. Measuring range: 0-999.9, accuracy 0.2. Zero button reset function, short press HOLD button to keep the data and long press to reverse the display. With locking knob to adjust the tightness of the ruler at any angle. Made of stainless steel and ABS, solid and superior for long lasting time. Compact structure to achieve convenient carrying and using. Suitable for woodworking, construction, drafting and other fields. Specifications: Material: Stainless Steel + ABS Color: Silver Measuring Range: 0-999.9 Resolution: 0.05 Accuracy: 0.2 Repeatability: 0.05 Total Length: 400mm Power Supply: 1 * 3V CR2032 Button Battery Item Weight: 173g / 6.1oz Package Size: 26.5 * 8.0 * 3.0cm / 10.4 * 3.1 * 1.2in Package Weight: 207g / 7.3oz Package List: 1 * Digital Angle Ruler 1 * CR2032 Battery