1V GROOVE MAGNETIC BASE: Digital angle gauge's magnetic V groove base can be firmly connected to black metal surfaces such as pipelines, steel structure frames, metal manufacturing, etc. 2ABSOLUTE AND RELATIVE MEASUREMENT: Digital angle finder has an absolute angle measurement function, which can test whether the working surface is on a horizontal plane to check roof slope, wheel alignment, etc. In addition, the magnetic horizontal plane can be used to check the relative angle between surfaces. 3LCD SCREEN: Digital protractor has a large backlit LCD screen. Regardless of the light, you can easily read the measurement results. When the electronic level is inverted, the displayed value will automatically reverse. When you arrive 0 or 90 , sound signals are emitted through a beep sound. 4IP65 WATERPROOF AND DUSTPROOF: With IP65 protection, this inclinometer is suitable for harsh environmental conditions. The battery cover and other highly sealed structural designs ensure good operation in environments with splashing water and dust. 5WIDE APPLICATION: Digital inclinometer is suitable for decoration, woodworking, architecture, masonry, machinery, automobiles, etc.