STANLEY MULTILINE LASER LEVEL || BEST LEVEL || Powered by AA Batteries (Included)Projection: 4 vertical lines, 1horizontal lines & 1 downward dot.It has a pendulum lock for safe transport and leveling vial. It is IP54 resistant to dust and waterIt has a range of 10m (50m with detector) with an accuracy of /-4mm/10mNo need to rotate the unit & No need to realign after each rotationIncludes: TSTAK transport box, glasses, lens card, line detector and 2 AA batteriesIt is made with high density plast