Product details:

The new DigiRoller Plus III from Calculated Industries can measure and calculate length, width, height, area, volumes and perimeters, including circular calculations. It measures up to 9,999,999 ft., yds., in. or meters. The Digi's rugged handle-mounted controls and large, glove-friendly TrueTac buttons make it easy to use the controls and read the display with no stooping, bending or squinting. And, it's built to last. It has a reinforced metal shaft and the LCD has an anti-shock mount. It is designed for general contractors, concrete and paving contractors, estimators, surveyors and landscapers.