The Extech DT60M Laser Distance Meter for Measurements up to 196 ft. (60 m) automatically calculates area and volume, while the integrated Pythagorean Theorem allows the user to take indirect measurements. Other features include continuous measurement with Min/Max distance tracking, 20 point memory, addition/subtraction of sequential readings, front or rear edge reference, and a Stakeout function. The DT60M is designed with a large quad backlit LCD display and double molded housing. It also has a handy built-in bubble level.