The DT200 features a laser measurement accurate to 0.08 in. at 32 ft. Measures from 2 in. to 115 ft. (0.05 to 35 m). Historical Storage recalls the previous 10 records (measurements or calculations). Automatically calculates Area and Volume. Indirect measurement using Pythagorean Theorem. Continuous measurement function with Min/Max distance tracking updates every 5 seconds. Addition/Subtraction, Front or rear edge reference. Low battery indicator, Auto power off. Complete with carrying case and 2 AAA batteries.