L3 Residential builders, landscapers, deck and patio.   The Pro Shot™ L3 laser level tool gives you a wide range of leveling and alignment features, including the ability to project a slope of up to 4%.  Widely used for septic tanks and leach fields, landscape drainage and other projects where a laser can save labor and greatly improve accuracy.  The L3 gives you one-man laser grade checking at its most affordable. Specifications L3 laser systems start at $299.00 Laser Reference, Inc.  •  USA Toll Free 1.800.238.0685 1000’ dia., 500’ rad. (304m/152m) ±40 arc sec. (±1/4" per 100') (±6.0mm per 30m) Manual with vials Built-in slope vial, 0-4% range Manual vial, optional mount 360º • Variable in steps 0-450rpm. Variable width 15º, 30º, 45º, 90º 12 Month defects coverage Two D-cells • 60hrs. (alkaline) Optional Ni-Mh kit • 40hrs. Highly visible 635nm CDRH class IIIa, IEC Class 3R To international standard IP55 -4º F to +122º F (-20º C to +50º C) Range with R7 laser receiver . Accuracy ............................ Leveling technology ............. Slope capability .................. Vertical capability ................ Rotation coverage • speed .... Beam scanning ................... Warranty............................. Power source • Life .............. Rechargeable batts. • Life ..... Laser beam type ................. Laser classification .............. Dust and water sealed .......... Operating temperature .........