Three lasers have been added to the Rugby series of automatic, self-leveling grade lasers from Leica Geosystems: Rugby 420DG, 410DG and 320SG rotating lasers. DG designates dual grade; SG single grade. Features include on-the-fly remote control operation and extended range. 420DG has an operating range of up to 3,600 feet diameter; 420DG operates up to 2,600 feet; and 320SG operates up to 3,000 feet. Lasers work with MC200 Depthmaster for excavators and MC1200 for graders. Two year warranty is standard with an optional three-year warranty extension.