The Bosch Self Leveling Lasers: GLL 30 and GCL 2-160
The Laser Range. Comparing the BOSCH GLL 30 to the GCL 2-160 S, the Bosch GLL 30 is capable of projecting a horizontal and vertical lines with a high accuracy rating of 3/16 of an inch at 30 feet. While the GCL 2-160 S Has sharp laser lights that are clearly visible up to 65ft and precisely measured to 1/8 th of an inch for up to 65ft.