The Stabila LD 220 Laser Distancer is a compact easy-to-use laser with 4 basic measuring functions length area volume and continuous measurement It has a large back lit screen with large readout making it easy to read in any environment With an impact-resistant IP54 rated housing with shock-absorbent soft-grip casing The laser delivers quick measurement results and assists in daily work eg calculating how much material is needed Specification Accuracy ±30mm Operating Range 02-30m Power 2 x AAA batteries supplied Protection Class IP54 dust & water splash Laser Class 2 Laser wavelength 635nm