Description:635nm Laser Line Projection Square Level Right Angle 90 Degree Measure ToolSpecifications:          Laser Wavelength       635nm           Anti-dust & Anti-water       IP-54           Accuracy       ±3\/8 inch \/ 100ft(±1.5mm\/5m)           Self-Leveling Range       ±4            Power       3x AA alkaline batteries           Low Voltage Indication       Power LED Flashing           Size       145 x 185 x 50mm           Weight       150g   Use to:1. Plumb and Align: Walls、 Doors、 Frames、 Stud Beams、 Windows and Skylights;2. Level Electrical Outlets; Stud and Curtain Wall Plumbing、 HVAC、 Plumbing、 Pipe Installation、etc.3. Easily Lay Out Right Angles; Establish Diagonals and Footings for Decks、 Porches、 and patios; Grade Determination; Dry Wall.Package Includes:1x Laser LevelMore Details: