Feature: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 steelPattern: 0-300mm / 0-500mm (optional)Measuring Range: 0 to 360 degreeResolution: 0.05 Accuracy: 0.2 Working Power Supply: 3 VBattery Model: 1 x CR2032 (Built-in)Operating Time: 5,000 hoursWorking Temperature: + 5 C- + 45 CWorking Humidity: 85%Uses: Angle and length measurement.Package List:1 x Angle Ruler