[High Accuracy] Four different units of measurement, accurate display of degrees, inches/feet, millimeters/meters and grade percentage, suitable for a wide range of applications. This digital range finder is suitable for woodworking, construction, engineering, automotive and other fields. [Easy to read] The digital angle joystick adopts a screen Backlit LCD, which makes the measurement fast, accurate and clear. When the tool is reversed, the display is automatically reversed. [Strong magnetism] The inclinometer is magnetic and can be connected easily and safely to tools such as saw blades, metal rods and round pipes. The bottom V-shaped groove can help you fix it on a special surface, and the groove lines on both sides are easy to save in the work. Power sourceBubble bottle horizontal integrated at the top, can work horizontally without battery, measuring range 4*90 (0 to 360). Also, this inclinometer will automatically power off after 3 minutes to protect the battery from working. (Batteries not included)