功能

• You can easily measure lines of any shape or scale.
• Simply align the tip with the line you want to measure and trace the line from the start point to the required point.
• You can measure line lengths and distances on maps, charts, and orienteering maps, and you can measure required line lengths on electrical wiring, plumbing drawings, mold designs, and mechanical plans.
• It has a compact design that is easy to carry.