Roller planimeter with numeric keyboard allows user input of scale so area from plan or drawing can be computed.  Electronic planimeters are excellent 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. Used in; surveying, civil engineering, cartography, architecture, medicine, clothing industry, boat and ship design, office, store and plant planning and with biology. 

	Planix 7 Planimeter	QTY:
	The Planix 7 will compute the area of a plan or drawing if the scale is entered via the numeric keyboard.  The planix7 is a roller planimeter has attached wheels that allow unlimited horizontal travel and vertical travel within the limits of the arm movement. Attribtes: Power: Internal NICd or AC Adaptor Operating Hours: After 15 hours recharge: 30hrs Display Method: LCD with zero suppression Resolution: One digit corresponds to 0.1cm2 Accuracy: Better than +/- 0.2% (+/- 2/1000 pulses) Display Capacity:  8 digits output/input HOLD, MEMO, BATTE, READY, cm2 , in2 , SCALE, m2 , km2 , ft2 , acre Measuring Range: 300cm x 30cm, 118" x 11.8" Weight: Approximately 650g Dimensions (Polar Arm Length): 150 x 240 x 39mm Carrying Case: 183 x 260 x 64mm

	Planix 10S Planimeter	QTY:
	Measuring functions:  Area, line, and side length(s) Measuring scales:  mm, cm, m, km, in, ft, acre/yd Measuring range:  300mm x 10m Measuring accuracy: ± 0.1% (for an area of 100 x 100mm) Display: LCD 16 digits on 2 lines Minimum line reading: 0.05mm Power: Internal nickel metal hydride battery or AC charger/adaptor Battery: 20 hours use Charging time: 15 hours Accessories: Storage case, AC charger/adaptor Dimensions: 250(L) x 110(W) x 40(H)mm Weight: 630g (without case)