77  Right angle projection. Line perpendicular to axis of housing.	77A  Line projected from front end of housing.
77B Right angle projection. Line parallel to axis of housing.	LH Series Smallest packaged He-ne. Available as "77", "77A", and "77B" projection.
D Series Detached power supply. Available as "77", "77A", and "77B" projection.	78A Dot projected from front end of housing.
Mounting Bracket Full adjustability for fine alignment of the laser.	Blaster High power 15 mW. Available as "77", "77A", and "77B" projection.