The Leica Rugby 680 Self-Levelling Slope Dual Axis Red Rotating Laser delivers simplicity to construction applications. A reliable and accurate general construction laser, designed for the concrete contractor. Semi-automatic, self-levelling with dial-in digital dual grade capability. Its protective rubber overmold and IP67 rating means its rugged and waterproof perfect for job site conditions. Its also easy and quick to use at just the touch of a button. The unique Smart Slope function continuously monitors time and temperature changes to ensure accurate performance throughout the course of the day. Designed for contractors who do mostly flat work but occasionally need to create single or dual slopes, the Rugby 680 construction laser is easy to use and effective in all levelling and grading tasks. Easily perform levelling and slope applications with the semi-automatic Leica Rugby 680 dual grade laser. The simple user interface, four-button menu and digital display allow quick and convenient dial-in grade for increased productivity and efficiency on site. Eliminate costly errors and downtime coming from temperature changes on the jobsite. The Smart Slope function of the Rugby 680 continuously monitors temperature changes over time. This unique functionality assures accuracy and solid laser performance over the course of the day.