The Hammerhead Compact Self-Leveling Cross Line Laser with Tripod Stand self-levels when positioned within 4° of level. For greater versatility, the Cross Line Laser can be manually positioned to project lines that are not leveled or plumbed for projects that require them. The integrated, foldable tripod stand ensures a stable position during alignment and is conveniently tucked away for transport and storage. Put away the chalked plumb line, Hammerhead is among top laser levels for construction! This is the smart way to hang wall paper, install cabinets, and mount free standing shelves with the confidence that comes from laser accuracy. More About This Product: ●Measurement Accuracy: +/- 1/4 in. at 30 ft. ●Self- Leveling Range: 4° ●Laser Beam Color: Red ●Battery: 1 AA Battery (included)