Digital Measuring Wheel DigiRoller Plus III

Units:

Linear: feet-inch, inches, decimal feet, yards, meters

Area: square feet, square yards, acres, square meters, hectares

Volume: cubic feet, yards and meters

Measuring Range: 0 to 9,999,999

Wheel Accuracy: 99.5%

Internal Math Accuracy: 12 digits

Length: Extended – 40.5″ // 103 cm

Folded: 21.5″ // 55 cm

Wheel Size: 12.5″ diameter // 32 cm / 39.3″ circumference // 1 m

Maximum Speed: 12 mph // 19 km/h

Display Capacity: 7 digits (9,999,999)

Power: One 9V battery

Operating Temperature: 14°F to 104°F // -10°C to 40°C

Storage Temperature: -4°F to 140°F // -20°C to 60°C