Ultrasmall size and portable design for easy carrying and quick setup, with simple operation for fast measurements. Magnetic measuring surface allows the magnet to adsorb on the measuring surface and attach securely to the measured workpiece, enabling hands measurement and stable positioning. Converts between relative measurement and absolute measurement, providing flexible reference options to suit different tasks and improve accuracy. Multipurpose measuring tool that combines a protractor, inclinometer, and level in one compact device, reducing the need for separate tools. Use on metal frames or workpieces by attaching the tool with its magnet, then verify level and angle to ensure proper alignment during assembly or installation. Transfer precise angles or slope measurements between fixtures by switching from relative to absolute mode, supporting accurate setup in woodworking, metalworking, or machining tasks. Check vertical and horizontal alignment during mounting of shelves, equipment, or machinery on walls or benches, while also confirming orientation with the builtin protractor and level.