Laser distance meters accurately measure long distances in straight lines by using the reflectivity of a laser beam to calculate distance. The LDM85 is a pro-grade tool measuring as far as 85' and is IP54 rated for use in dusty and rainy environments. It also features a backlit display making it easy to read. This laser distance meter can measure length area volume and continuous measurements. LDMs measure where a tape measure can't. The LDM85 is useful for estimating paint or flooring measurements. Measuring the heights of walls and trusses calculating warehouse space and more.