Digital angle measuring range (0 -360), small and lightweight, easy to use, designed to set or check the relative angle between surfaces, and can also be used as a real compact digital level for points. The LCD display values can be easily read on the LCD display. BUILT-IN MAGNET A powerful built-in magnet on the base ensures adhesion to any iron surface. High Accuracy It provides precise measurements with an accuracy of 0.2 degrees. Auto shut-off It is powered by 2 AAA LR03 batteries, not included, it can be turned on for 3 minutes, then it will shut off automatically. Powerful magnets built into the surface ensure a base that attaches to any iron surface, designed for setting or checking relative angles between surfaces, also works as a true digital level for tight places. Electronic Inclinometer 3-button backlit digital display with built-in strong magnetic base: Dust and waterproof: IP54 waterproof Note: The data is all measured manually, please allow 1-3cm error, due to the light and display difference, there will be some color difference, the actual object received shall prevail.Note: The data is all manually measured, please allow 1-3cm error, due to the difference in light and display, there will be a certain color difference , the actual object received shall prevail.