The RoboToolz RT-7210-1G Green Beam Laser dot is 6 times brighter than a red laser and can be seen up to 300 feet without having to use a laser detector. The patented pendulum self-leveling system automatically self levels the laser and the pendulum lock protects the pendulum during transportation and storage. Select either a bright dotted level line or a single bright dot and control the unit with a 3 speed remote that allows you to either slowly move the beam to the left or right as little as a fraction of an inch or quickly rotate the unit a full 360 degrees.