Trimble GL412/422 Automatic Grade Lasers

The GL412 (single grade laser) and the GL422, (dual grade laser) are cost-effective, automatic self-leveling lasers that can do three jobs – level, grade and vertical alignment with plumb. They both send a continuous, self-leveled 360-degree laser reference over your entire work area. With a wide grade range, they can be used in a variety of slope applications.