Amazon.com: Johnson Level & Tool 40-6517 Self-Leveling Rotary Laser System, 29 x 7", Red, 1 Kit : Everything Else
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Bosch 1300-ft Self-Leveling Outdoor Rotary Laser Level with 360 Beam at Lowes.com
DeWALT® DW083K Electronic Self-Leveling Rotary Laser Level Kit - 100 ft - +/-1/4 in at 100 ft - +/-4 deg Auto Leveling
Johnson Level Self Leveling Rotary Laser Level Kit - 40-6516