Bosch GLL2-40 Self-Level Cross Line Laser, Up To 30 Feet Smallest cross line laser. On the market with built in magnetic bracket Full selection of beam visibility. Four options include vertical alignment  horizontal level  cross line  manual slope cross. Simple keypad operation-easy to learn and operate with limited training requirements Robust construction-Rubber co-mold housing, solid pendulum transport lock and recessed glass windows Easy to Set Up and Use Integrated floor and magnetic wall bracket provides easy 3600 rotation and set up with convenient -20 or 5/8-11 tripod mounting. Class IIa laser product, &lt;1mW power output