According to AGL, the new EAGL 3000S laser is extremely accurate and stable in all environments, using high-performance tilt sensors to ensure precise, repeatable self-leveling of ± 1/16 inch at 100 feet. (The exact specification is± 8 arc seconds, which is ± 1/20 inch at 100 feet.) The user can rake-in a single slope, says AGL, matching up to 6 percent positive or negative slope in the X axis, while the Y axis remains compensated. The instrument's working range is 3,000 feet in diameter.