2D grader laser guidance solution, single or double. The Leica iCON grade iGG2 2D grader guidance system maximizes the use and profitability of your machine from the very first day by preparing the surface at the first pass along with maximizing the management of your materials. The system grants you the possibility of reducing manpower costs because of the elimination of certain control levels. This guidance solution offers automatic control of slope and elevation. The addition of a second mast with another laser sensor allows you to work independently from the slope direction.