The Hultafors DM Magnetic Digital Spirit Level has a a robust aluminum box profile with strong, integrated magnets. Its shock absorbing end protectors provide added protection and have an anti-slip function. The digital display shows tenths of degrees, percentages, mm/m or inch/feet. With automatic shut-off after 5 minutes. The measurement area is 360°, split into four 90° zones. Ideal for measuring inclination in different applications. The vials have a +30% magnification lens and the horizontal vial has a luminescent reflector. Tolerance of vials in normal/ upside down position is ±0.5 mm/m. Electronic unit tolerance in horizontal (0°) and vertical (90°) position is ±0.05°, for other angles ±0.1°. Powered by 3 x AAA batteries.