DEWALT DW082K LASER PLUMB BOB

Self-Levelling plumb bob is accurate to ± 0.2 mm/m
Self-Levelling up to 4° surface angle, finds plumb in seconds - no vials or knobs to adjust
One button operation is fast&easy to use
Focused laser beam keeps dot small even over long distances for improved accuracy&visibility
Cross-hair beam pattern helps user find center of beam
Rubber overmolded housing helps maintain calibration under jobsite conditions
Locating magnets hold Laser Plumb Bob to metal track for easy positioning
Standard:
4 x AA size alkaline batteries
Heavy duty carrying case