Cross Line Laser. What are they? & What can they do? - RedBack Lasers
5mW Red (650nm) Mini Cross-Line Laser Module (9mm) - OdicForce
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Adjustable focus red line laser module
Laser Level, HYCHIKA 50 Feet Cross Line Laser with Dual Modules, Self Leveling Laser Level, Switchable Self-Leveling Vertical and Horizontal Line Construction Picture Hanging, Battery Included - - Amazon.com
Bosch VisiMax Red 100-ft Self-Leveling Indoor/Outdoor Cross-line Laser Level with Cross Beam in the Laser Levels department at Lowes.com
OXLasers 650nm Adjustable Red Cross Line Laser Module for Positioning Cross Laser Alignment Locator (Cross Line) - - Amazon.com
Cross Line Generating Laser Modules - Red Cross Line Laser Modules 10mW Manufacturer from Delhi
5mW 650nm Red Laser - Adjustable Cross - Crosshair Laser - BC Robotics