The DEWALT Self Leveling Cross Line and Plumb Spots Laser Level projects two bright, self-leveling horizontal and vertical beams to provide accurate plumb point transfer. Down-beam projection with raised clearance provides laser-dot visibility and alignment for wall track layout. The beams have an indoor visibility of 100 ft. The range of this handy leveling instrument can be extended to 165 ft. It’s designed to withstand hazardous job site conditions thanks to an overmolded housing that protects the unit from precipitation and construction debris.