GLL 50 | Self-Leveling Cross-Line Laser | Bosch Power Tools
BOSCH GLL 2 Self-Correcting Cross Line Laser Level with Mounting Device (AA Batteries Included) - - Amazon.com
Bosch 165-ft Self-Leveling Cross-line Laser Level with Beam at Lowes.com
Bosch 50 ft. Cross Line Laser Level Self Leveling with L-Bracket Adjustable Mount and Compact Tripod with Extendable Height GLL 50 + BT 150 - The Home Depot