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, e.g. calculating how much material is needed. Specification: Accuracy: ±3.0mm.Operating Range: 0.2-30m.Power: 2 x AAA batteries (supplied).Protection Class: IP54 (dust & water splash).Laser Class: 2.Laser wavelength: 635nm.Additional Information:Accuracy (±mm/m): 3Max. Range (m): 30