Bosch has come out with what could be a revolutionary laser tool. The GSL 2 Surface Laser shines a dual laser across the surface of a concrete floor or overlay so that high or low spots can be identified. Where the two laser lines separate indicates bumps or depressions. The laser reaches as far as 60 feet and comes with a remote control so the person checking the floor profile can operate the device and still mark the spots. Bosch says it has an accuracy of 1/8 inch at 30 feet. For more information visit