Features 2-in-1 Measurement Tool: This stainless steel digital angle finder ruler combines a ruler and protractor in one, enabling easy and efficient measurements for various applications. Clear Digital Display: The clear screen display allows for quick and easy reading of measurement results, while the digital calculation system enhances accuracy and speed in angle and length measurements. Data Lock Function: The digital display angle ruler features a data lock function, enabling the rotation and display of data, which can then be locked in place. Convenient Locking Device: With a well-designed locking device, this angle ruler allows for hands-free operation and easy locking of angles with a simple twist. Versatile Application: A multifunctional protractor suitable for automobiles, meters, construction, shipbuilding, woodworking, and engineering, adding convenience to various professional settings. Specification: Item Type: Digital Angle Finder Ruler Model: PD290 Material: Stainless Steel Uses: Automobiles, Instruments, Construction, Shipbuilding, Woodworking, Engineering, etc. Battery: 3V CR2032 x 1 Button Battery (without Battery) Measuring Range: 0-360° Scale Unit: Metric Scale, Imperial Scale Graduation Value: 0.05° Accuracy: ±0.2 Repeatability: 0.05° Switch Key: ON OFF Clear Key: ZERO Lock Data Key: HOLD (Short Press this Key) Rotating Display Key: Rev (Long Press this Key for Three Seconds) Package List: Item Type: Digital Angle Finder Ruler Model: PD290 Material: Stainless Steel Uses: Automobiles, Instruments, Construction, Shipbuilding, Woodworking, Engineering, etc. Battery: 3V CR2032 x 1 Button Battery (without Battery) Measuring Range: 0-360° Scale Unit: Metric Scale, Imperial Scale Graduation Value: 0.05° Accuracy: ±0.2 Repeatability: 0.05° Switch Key: ON OFF Clear Key: ZERO Lock Data Key: HOLD (Short Press this Key) Rotating Display Key: Rev (Long Press this Key for Three Seconds) Package List 1 x Digital Display Angle Ruler