... Specifications: Level Accuracy: ± 1mm/5m Vertical accuracy: ± 1mm/5m Point precision under: ± 1mm/1.4m Orthogonal Accuracy: 90 ° ± ... degreeEmission angle: 110 degree Line Laser wavelength: 635nm Point Laser wavelength: 650nm Working distance: indoor 10m working ... , the door angle, stigma Corner detection, level detection point. Decoration: doors and windows, staircase handrail installation, pipeline ...