Base for Secure Attachment This angle protractor has a base that securely attaches to the measuring surface, enabling stable angle measurement on various workpieces. Data Hold for Easy Reading A data hold function locks the measured angle value for easy reading, preventing fluctuations during measurement. Angle and Slope Conversion The digital electronic protractor inclinometer enables simple conversion between angle and slope, broadening its applications from carpentry to engineering. Relative and Absolute Measurements It can switch between relative and absolute measurements, providing flexibility to capture angles based on your reference. Use scenarios - Woodworking and cabinetry: verify miters, align parts, and check repeatable angles during assembly. - Machinery setup and metal fabrication: align components, verify levels and slopes during installation. - Site work and surveying: check roof pitch, slope, and general angle measurements on-site.