The CST/Berger ALHV-G Green Split Beam, Self Leveling Rotary Laser Level features Pro-Grade technology that delivers many benefits that make the ALHV-G perfect for almost all indoor and outdoor jobs. Stong and durable enough for the most demanding construction projects, and with super fast electronic self-leveling and Anti-Drift your work is sure to be on each an every time. The ALHV-G is accurate to 1/16" @ 100ft and has a working ranges of up to 660ft in diameter when used with the Optional LD440G Laser Detector. The ALHV-G also features both Horizontal and Vertical capabilities along with dual manual grade. The ALHV-G includes a Three year factory warranty and comes complete with ALHV-G, Rechargeable Ni-Mh Battery, Charger, Remote Control, Ceiling Targets, Wall Bracket, Glasses, Carrying Case and Owners Manual.