"Self-Leveling 3 Beam Laser Dot simultaneously projects 3 self-leveling beams. Magnetic base holds tight to steel framing track. Dust and water resistant. Laser Beam Color Red, Mount Type Tripod or magnetic, Beam Type Dot, Dimensions L x W x H in. 4 3/16 x 2 9/16 x 4 1/2, IP Protection Class IP 54, Leveling Type Self-leveling pendulum, Class Rating Class IIIa, Interior Range ft. Up to 100, Battery Type AA, Base Type Magnetic base, Tripod Mount Dimensions in. 1/4in.-20 Center screw thread, Visual or Audible Indicator Both, Beam qty. 3, Laser Output Locking mechanism protects inner pendulum during transportation"