Magnetic attachment provides secure positioning on the measuring surface and can be mounted on the workpiece being measured for hands operation and versatile use. Data lock keeps the current reading in place for easy, accurate transfer to records without drift or misreadings. Relative to absolute measurement conversion allows quick switching between incremental measurements and a fixed zero reference for flexible documentation. Angle and slope conversion enables easy interpretation of inclinations and tilts, simplifying setup and inspection tasks. Use scenario 1: in a milling or grinding operation, attach it to the workpiece or measuring surface to verify alignment and distance during setup and between operations. Use scenario 2: during assembly, use the device to check gaps, squareness, or flatness by converting readings from relative to absolute as required for quality records. Use scenario 3: in fixture and jig setup, use the angle and slope conversion to dial in precise angles and verify against target specifications for repeatable positioning.