Product 2 Meaturements Modes Precise Angle Measurements There are 2 measuring modes: Absolute Measurement (ABS) and Relative Measurement (REF). Just one short press, you can check the true or relative angle conveniently. The digital level with 360(4*90) measuring range,Accuracy: 0.1at 0and 90,0.2at the rest angles.One-button switching angle and slope with a resolution of 0.01 , this digital angle gauge will give you the details needed for design purposes. Digital Inclinometer with Backlight LCD Display This Digital Angle Cube is equipped with a 1.44-inch LCD display with backlight and the responsive electronic tilt sensor, providing you accurate, immediate and clear measurements. Also the Display will be inverted Automatically when the tool is upside down. In addition, this digital level box will automatically turn off after 5 minutes of no operation to save battery. Digital Level Box Built-in Magnets With its powerful magnetic base, this digital protractor can easily and firmly attach to miter saw, band saw and table saw blades. There is a round iron sheet with Velcro in the package,so you can also use it on fences, Walls, decorations, wood planks. Thanks to its strong magnet, you no longer have to worry about holding the tool in place while taking measurements.And the laser lines on the left and right sides are convenient for marking when measuring. Portable Digital Angle Gauge Built-in Battery In compact size, this angle gauge can fit into tight spots to get perfect measurements needed. With handy design and a portable lanyard, this sturdy precision tool can be taken to anywhere. This Digital Angle Finder has built-in 300 mAh battery, which eliminates the trouble of replacing the battery and can be charged at any time, allowing you to have a better experience.