Klein Tools Laser Distance Measurer is designed to give you easy jobsite/worksite estimating of layout and required materials. The tool accurately verifies the distance between two points and is particularly handy at distances over 30 feet, the length of the longest tape measure. The Laser Distance Measurer also offers volume estimating for HVAC installers.PRODUCT FEATURES:• Meter provides measurements up to 65-feet in distance, at an accuracy of + or - 1/16''• Quickly calculates area, length and volume with large, easy-to read buttons• Provides both fractional (imperial) and metric readings• Offers the option of one-touch, single-distance measurement and continuous measurement• Highly visible backlit display• Memory stores last 20 measurements.• Includes handy carrying pouch to keep unit safe when not in use