planimeter measures the area by pulse count of 8 - digit. This method enables a larger cumulative measurement of area (up to 10 m2). This is  roller-type planimeter and has full calculation functions.This planimeter can measure a larger area by 100 times than an ordinary planimeter, the conventional planimeter has a maximum cumulative area to measure only 0.1 m2.  can easily convert the measured area value in to a new area value with a new unit and with a new scale value.