Specification :

Koizumi Digital Planimeter KP 90N
Display Liquid Crystal, 8-digit figures, 10 symbols
Symbol Batt-E, SCALE, MEMO, HOLD; cm2, m2, km2, in2, ft2, acre
Converting Function Unit and Scale value
Accumulated Measuring Value Maximum 10m2 ( scale 1: 1)
Measuring Range Maximum vertical width: 325mm
Horizontal roller rotating length 30m

Accuracy within + 0.2% ( within + 2/ 1, 000 pulses)
Operating Duration Approx. 30 hours of continuous operation
Battery Charging Time Approx. 15 hours
Main Unit Weight 750g