Bosch gpl3t torpedo 3 point alignment laser

3-Beams: Plumb, Level, and Square Point Projection - Accurately transfers and aligns plumb, level, square, and grade points Precision Vials V-Groove - Aligns unit with pipes Laser Reference Edge Precision-Crafted - Anodized and machined for superior accuracy and durability On/off Switch Limited 2-Year Warranty Versatile Positioning Capability thanks to precision bubble vials, leveling base, V-groove, magnets, 1/4 in x 20 tripod mount, alignment shoulders, positioning tip and strap slots Specifications Accuracy: Up to 1/4 in at 75-ft Battery: 3 AAA Batteries Dimensions: 9.5 in x 1 in x 1.75 in Laser Diode: Class II 635 nm, = 1 mW Mount Threading: 1/4-20 Range: Up to 100-ft Weight (lbs.): 1.6 lbs (0.37kg)