Mechanical and Electrical (Digital) Planimeters are excellent area
measuring tools to use when you measure irregular shaped areas on plans
or drawings. They eliminate the need for grids, charts, or calculations
done by hand. If you need to measure the area of an object in 2D we
recommend a planimeter. Planimeters are used by professionals in these
areas: Surveying, Civil Engineering, Cartography, Architecture,
Medicine, Clothing, Industry, Boat & Ship Design, Office, Store
& Plant Planning, Biology, and more.