The Laser Measuring Tool calculates area (square feet) and volume (cubic feet), and reportedly measures single distances to an accuracy of 3/16 inch at 150 feet, displaying the results on a large, back-lit LCD screen. Measurements are displayed in feet, meters, or millimeters and can be converted from fractions to decimals. The tool's recall feature saves up to 10 measurements, which can be scrolled forward and reverse. A reference-point button allows one to choose whether the reference point begins at the top of the tool or the bottom. It comes with carrying case and instruction manual.