Dewalt Laser Distance Measurer 50 M Laser Distance Measurer (165 Ft.) DW0165NAbout this Item:Accuracy: +/- 1.5mm @10mWorking Range: 0.1-50 mIP Rating: 54; Laser class: 2Dust And Waterproof Resistant As Per IP54 Standards.Widely used in construction and industries, especially in large areas such as rooms, apartments, buildings, real estates, factories, warehouses, etc.Warranty: 1 year warranty provided by the manufacturer from date of purchase