Locking mechanism protects inner pendulum during transportation. Self-leveling in the horizontal plane. Manual-leveling in the vertical plane with 90° split beam. Visual and audible alarms when beyond leveling range. Laser rotates at 200, 400, 600 RPM. Illuminated vertical vial. Water and dust resistant.
Self-leveling rotary laser level, tinted glasses, 4 "AA" alkaline batteries, detector with 9V battery and clamp, instruction manual with warranty card and hard-shell carrying case.