Planimeters

Roller-type model with 6-digit pulse count for cumulative measurements up to 10m-100 times the capacity of ordinary planimeters
Enhanced with micro-processors for precise and accurate measurements, ideal for civil engineering, surveying, and more
Features hold and measuring control, clear digital readout, and scale readings in Metric or English
Easy roller operation, simply follow the outline of the area to be measured
Max measuring range of 325mm vertical and 30m horizontal with accuracy within ±0.2%
Comes with a plastic carrying case, AC adapter (battery included), and operating instructions
Includes a 1-year warranty from the manufacturer.