Bosch Self-Leveling Rotary Laser Kit GRL 245 HVCK ACCURACY: The Bosch GRL 245 HVCK Rotary Laser Kit offers an 800-ft maximum diameter range with 1/8-inch accuracy for exact leveling on even the biggest sites. SELF-LEVELING: The rotary laser provides fast horizontal and vertical self-leveling. The self-leveling range is up to 5 degrees and automatically levels the laser and also indicates out of level conditions. CONVENIENT: The tool's rotating laser projects 90 degree plumb and layout lines for squaring, with the laser plumb line continually available for the 90 degree layout of walls. The dual-sided LED laser receiver makes it easier to find a level during applications from either side of the receiver. COMPLETE: The kit provides a full range of accessories Including receiver and bracket, tripod, grade rod and case. The unit is water and dust resistant to withstand tough jobsite environments (certified IP54). Class IIa laser product, &lt;1mW power output Class IIa laser product, &lt;1mW power output