4way magnetic base enables singlehand operation with stable measurements and secure attachment to metal surfaces, improving efficiency and handling. Autorotating display with upsidedown readability and a responsive orientation sensor provides clear viewing from multiple angles, reducing error and rereading time. Measures grade and plumb with constructiongrade accuracy, and offers absolute and relative modes for versatile applications across different projects. Simple buttonpress unit conversion switches between degrees and percent, quickly adapting to measurement standards for enhanced usability and convenience. Use scenarios Framing and cabinet installation: Use the device to establish accurate plumb lines and grade across walls. The magnetic base allows hands mounting on metal surfaces while you work, improving speed and accuracy during layout and fastening. Stairways, ramps, and slope work: Check and verify slope or incline by switching between degrees and percent as required by the project specs. The absolute and relative modes help you compare current readings to reference points or monitor changes over time. General site layout and fixture alignment: Verify levelness and alignment for doors, windows, countertops, or machinery feet. The onehanded operation and readable display from multiple angles reduce rereading and adjustment time, supporting precise placement.