Description: 2-in-1 Multi-functional Measurement: Combined with ruler and angle sensor, can measure angle and length. Perfect for measuring inner and outer angles and angles of objects. Easy Read: LCD screen display data clearly for easy reading. Accuracy 0.3°, measuring range: 0-200mm(7inch)/ 0-360°. Material: Made of durable aluminum alloy for long last using, wear resistance, not easy to deform, and will not scratch your hands, easy to carry. Locking Knob: Fixing the angle by locking the knob as you need, do not worry about data deviation. Auto Off: It will shut down after 5 minutes of inactivity automatically, power saving. Specification: Material: Aluminum Alloy Color: Black LCD Size(LxW): About 24x11mm/0.94x0.43in Size (LxWxH): About 217x35x20mm/8.54x1.38x0.79in Measuring range: 0-200mm Measurement accuracy: 0.3° Scope of application: 0°-360° Powered by: 1x button battery (Built-in) Package includes: 1pc x Digital Angle Ruler