AdirPro - Digital Distance Measuring Wheel - Large Digital LCD Display - 12 Commercial Grade Feet-Inch - FREE Carrying Bag HIGH-QUALITY, DURABLE CONSTRUCTION. Measuring 12 in diameter with a 3' circumference, this unit boasts a plastic molded wheel for long-lasting strength and use. It features a telescoping handle that is extendable up to 44 inches and collapses to 27 inches for easy carrying and storage in the included soft carrying case. The kickstand is sturdy and all buttons are water-proof and dust proof, ensuring that this unit is built to last. U.S. AND METRIC MEASURING UNITS. The AdirPro Digital Measuring Wheel measures in units of tenths of feet or meters up to a 9,99.9 foot/meter range, providing the added convenience of calculating mixed measurements on one project if needed. MULTIPLE APPLICATIONS. Versatile enough to use on a variety of indoor and outdoor projects, this tool is ideal for real estate appraisers, law enforcement, construction or landscaping workers and homeowners alike. EASY TO USE. The measuring wheel is lightweight and ergonomic, making it portable and easy to use. The handle features a large, digital LCD screen with backlight for easy viewing and the memory can store and recall up to five values. It comes complete with a user guide and a 1-year limited warranty against defects. CORDLESS OPERATION. The unit runs on two AAA long-life batteries (included in package), so you can operate it cordlessly for up to 30 hours. It also features an auto shut-off when not being used to preserve the life of the batteries.