Features 1、Digital ruler can quickly display measured values on a large LCD screen, which is practical. 2、With optional switch button and automatic power off, such angle ruler can be easy to use. 3、Fixing screw can fix the measuring angle in any position. And you can use it with confidence. 4、Meanwhile, this ruler is made of stainless steel material, which makes itself getting great popularity. 5、Used for angle and length measurement, such measuring tool is entitled with pratical adoptability. Specification Item Type: Ruler Material: Stainless steel Pattern: 0-300mm / 0-500mm (optional) Measuring Range: 0 to 360 degree Resolution: 0.05 ° Accuracy: ± 0.2 ° Working Power Supply: 3 V Battery Model: 1 x CR2032 (Built-in) Operating Time: 5,000 hours Working Temperature: + 5 ° C- + 45 ° C Working Humidity: ≤85% Uses: Angle and length measurement Package List 1 x Angle Ruler