"Self-Leveling 3 Beam Laser Dot simultaneously projects 3 self-leveling beams. Magnetic base holds tight to steel framing track. Dust and water resistant. Dimensions L x W x H in. 4 3/16 x 2 9/16 x 4 1/2, Mount Type Tripod or magnetic, Beam Type Dot, Laser Beam Color Red, IP Protection Class IP 54, Leveling Type Self-leveling pendulum, Battery Type AA, Class Rating Class IIIa, Interior Range ft. Up to 100, Beam qty. 3, Battery Life Approx. 50 hrs., Self Leveling Range 3, Base Type Magnetic base, Tripod Mount Dimensions in. 1/4in.-20 Center screw thread, Visual or Audible Indicator Both, Battery Included Yes, Laser Output Locking mechanism protects inner pendulum during transportation"