The PLS5 and PLS90 are designed for layout of control points and lines in outdoor conditions and bright sunlight. Working range is 250+ feet with an accuracy of +/- 1/8" at 100 feet. Lay out conduit, anchor bolts and square on slab faster than ever before. Eliminate time consuming set up of expensive infrared rotary lasers. PLS offers more utility outdoors at a fraction of the cost of typical rotary lasers.