It has 3 laser diodes - one for each of the beams. It has a 3-position power/lock switch and features a visual warning/indication for 'manual mode'.
Stanley Cross90 Red Self-Levelling Cross-Line Laser Level - Screwfix
STANLEY® CROSS90™ Cross Line Laser Level (10m)
STANLEY Cross 90 Cross Line Green Beam Laser Level STHT77592-1 : : DIY & Tools
STANLEY® Laser Level Cross 90° Green
Stanley STHT1-77147 Cross 90 Laser Level with Pole
STANLEY Cross 90 Cross Line Green Beam Laser Level STHT77592-1 : : DIY & Tools
Stanley STHT1-77147 Cross 90 Laser Level with Pole
Stanley STHT775921 Cross 90 - Line Green Beam Laser Level
Livella laser cross 90 con asta telescopica art.stht1-77147 - Misuratori e livelle
Stanley Cross90 Red Self-Levelling Cross-Line Laser Level - Screwfix
Livella laser cross 90 con asta telescopica art.stht1-77147 - Misuratori e livelle
Stanley STHT1–77147 Cross 90 Laser Wasserwaage mit Stange : : DIY & Tools
STANLEY Cross 90 Cross Line Green Beam Laser Level STHT77592-1 : : DIY & Tools
Stanley STHT775921 Cross 90 - Line Green Beam Laser Level
STANLEY® Laser Level 360° Cross Line Green