They are called dual beam because they include a visible day laser and an invisible night laser.
Dual beam laser.
Low light and nighttime precision the intelligent dual beam laser provides accuracy even in dark conditions.
Multiple uses and functions two eye visible laser beams shoot in opposite directions align two points from the middle.
The dbal i2 dual beam aiming laser intelligent2 from steiner eoptics is built to withstand the toughest tactical and combat situations in the harshest and most difficult weather and terrain conditions.
Steiner dbal a3 dual beam aiming laser now available for the commercial market the dbal a3 is the first eye safe ir laser pointer ir illuminator and green laser pointer in a single compact unit.
The intelligent dual beam aiming laser provides civilians and warfighters with extreme accuracy in low light and no light maneuvers.
Features an adjustable ir illuminator for better illumination at longer ranges dual activation switches and high and low power modes.
Available with either a visible green or red laser weight 8 0 oz.
Submersible to 5 m.
L202 dual beam alignment laser with optional individually switched laser beams.
Some models include a bright white tactical light too.
All include an ir illuminator.