Features & Benefits * GL412N/GL422N are grade plus horizontal and vertical lasers. Simple, accurate dial in grade from -10% to 15% (Single GL412N, Dual GL422N) * Up to 2,600 ft (800 m) working diameter which increases productivity by reducing need for multiple set-ups on a large job site * Fast setup, minimal training time and automatic self leveling minimize operating costs and boost productivity * Highly rugged design and patented lighthouse seal protects the rotor head and glass and offers superior drop and weather protection for reduced downtime * 2-way full function remote control allows grade changes to be Made from anywhere on the jobsite * Temperature calibrated for high accuracy over wide temperature changes * IP66 dust and water-proof to withstand harsh jobsite conditions * Customizable with choice of HL760, HR320 or CR600 receivers * Mask mode eliminates interference from other crews on the jobsite * Automatic Grade Match and PlaneLok