"The Rotary Laser Level features self-leveling in the horizontal plane and manual-leveling in the vertical plane with 90 split beam. Illuminated vertical vial. Visual and audible alarms when beyond leveling range. Indicator Type Visual, audible, Battery Included Yes 4, Beam Type 90 split beam, IP Protection Class 54, Laser Output Locking mechanism protects inner pendulum during transit"
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