. PLS360 .Provides you with a 360 degree line of reference .Fully self leveling .Offers one button set up for indoor-outdoor applications .This compact, bright and durable tool has no complicated features or multiple knob adjustments .Defective item will replace or repair, no refund .Accurate up to 1/8 of an Inch at 100 feet . PLS-SLD .Designed to provide point-to-point and line reference for layout within 250 feet indoor and outdoors .Combine your PLS laser with a laser detector and maximize your utility .All PLS laser tools are durable, compact and easy to use Fully repairable - youll never throw away a PLS laser .Features include front and back display and audible signal to locate beams outdoors . PLS360 . Working Range: +/- 250 ft . Operating time: +35 Hrs . Dimensions: 3 1/8 x 5 x4 1/2 . Tool weight: 2.0 lbs. . Power Supply: Three (3) D Batteries . Leveling Range: +/- 6 . Accuracy: 1/8 at 100 ft . Laser Class: 2 . Indoor/Outdoor Use: Both . PLS_SLD . Range: up to 250 ft . Power: Three (3)AA Batteries . Audible signal: Yes .Includes .PLS360 laser Unit .PLS-SLD Laser Detector .Carrying Case .Ceiling Bracket .Operating Manual