This DEWALT 100FT LASER DISTANCE MEASURER is a reliable tool for any construction site. With its advanced laser technology, it can measure distances up to 100 feet with an accuracy of +/- 1 inch. Its compact design makes it easy to carry around and its LCD display allows for easy reading of the measurements. The unit type is in feet and the model is DWHT77100. It is a great addition to any tool kit for professionals or DIY enthusiasts.