3 beam line laser to aid in 90° layout.  2X brighter diode to increase visibility in bright job site conditions.  Built-in magnetic pivot bracket mounts easily on metal surfaces.  Accurate to +/- 1/8" @ 30' for level applications.  One-button operation and control panel for ease of use and micro-adjust knob for precise alignment for 90° intersecting lines over greater distances.  Indoor visibility range is 50 ft.  Includes:  (4) AA batteries, ceiling mount and kit box. Beam: Red.