Johnson Level & Tool 40-6936 Theodolite With Laser Five second angular accuracy - accurate enough for any construction job Vertical axis compensation - tilt sensor provides the highest level of accuracy and be turned on or off depending upon job requirements Dual LCD with large characters - easy to see, angle readings, eliminate errors and reduce eye fatigue Laser Class llla Power output Less/Equal to 5mW Laser Class IIIa, &lt;5mW 3 Year Warranty: Johnson Level warrants this product against defects in material and workmanship for three years after the confirmed purchase date. At its option, the company will replace or repair the product if it fails under normal use.