AGL Construction Lasers & Machine Control Systems” GradeLight 3000 is a pipe laser available in 10.5-inch (265mm) length to support tight inverts and small pipe jacking pits. The laser will self-level over a 40 percent to -10 percent grade range, with a total compensation of 45 percent to -15 percent. The laser will also compensate up to six degrees in its cross axis and allows the user to place the laser in the pipe without having to worry about rough leveling the laser. It can be powered by its Li-Ion battery pack, alkaline batteries, or from a 12V DC source. The housing components are aluminum diecasts and extrusions. The inner mechanism also has diecast parts. The laser incorporates a vertical rotating laser beam that can be used for manual alignment of the laser beam. Or with the optional AutoTarget feature, a pushbutton can be used to automatically align the laser beam. One set of slide legs is included to cover multiple pipe sizes and a standard target. The target panel is mounted at the front of the base, not in the center, allowing the user to view it easier at the front of the pipe. The target also has a magnetic base for attaching to trench box sidewalls. Another unique feature of the GL3000 is the Grade display is color coded (green for positive grades, red for negative) to reduce setup errors.