Bosch Self-Leveling Green Cross-Line Lasers - Pro Tool Reviews
Bosch GCL100-80CG Connected Green Beam Self-Leveling Cross-Line Laser with plumb points, 12 V max
Bosch GLL55 50ft Cross Line Laser Level Self-Leveling with VisiMax Technology, L-Bracket Adjustable Mount and Hard Carrying Case, 4.4 x 2.2 x 4.2 inches - Amazon.com