THIS RED BEAM ROTARY LASER IS THE PERFECT SOLUTION FOR RESIDENTIAL AND SMALL COMMERCIAL JOBSITES UP TO 800' IN DIAMETER. FEATURES SIMPLE ONE PERSON OPERATION IN BOTH HORIZONTAL AND VERTICAL PLANES, WHILE THE DURABLE CO-MOLDED HOUSING PROVIDES PROTECTION FROM ROUGH JOBSITES. IDEAL FOR GRADING, EXCAVATION, FENCING/POSTS, DROP CEILINGS, CABINETS, FINISH WORK AND MUCH MORE. ACCURATELY PLUMB AND ALIGH WALLS WITH EASE IN VERTICAL MODE WITH THE 90 DEGREE SPLIT BEAM FOR PERFECT RIGHT ANGLES.