Digital Angle Ruler Aluminum Alloy Electronic Protractor Angle Finder Level Measuring Gauge Meter Inclinomete 0-225 Degree 400MM   Description:  This digital angle finder, with LCD display and blue back-light, it is able to see the measured record under many circumstances. This wide measurement range(0-230°) and high precision(±0.5°) angle gauge makes you work with efficiency and comfort.What's more, it is simple to transfer the miltre angle for your mitre/slide saw by pressing the MITER key. The shell of the protractor is made of aluminum, which is strong and durable, suitable for the complicated working environment.    Features:  1.Measuring Range and High Accuracy: With 0-230° of measuring range, 0.1° of increment, ±0.5° (9mm/m) of accuracy, allow you to measure angle precisely and quickly. 2.Mitre Gauge Function: It is also used as a mitre angle calculator, transfers the miltre angle for your mitre/slide saw. 3.Distinct LCD Digital Display: With blue back-light screen, able to read the data clearly even under dark circumstance. 4.Readout Frozen and Auto Power Off: The hold function of readout offers you great convenience when working. After 5 minutes of no operation, the unit would power off automatically, for extending the battery life. 5.High Quality Material: Made of aluminum, which is strong and durable. 6.Easy Operation and Wide Applications: As a quick protractor , is an ideal DIY tool for remodeling houses, door andWindows installation and much more.   Specifications:  Material: Aluminum Measuring range: 0-225° Measuring accuracy: ±0.5° Increase/decrease angle: 0.1° Spirit Levels: Horizontal and vertical bubble levels Working temperature: 0°C~-50°C Battery: 9V 6F22 (Battery is not included) Item Size: 46x5x2.3cm (18.1x2.0x2.3in) Item Weight: 420g(14.8oz)   Package Included:  1x Digital Angle Finder(without battery) 1x English User Manual