DeWalt DW084K 4 Dot Laser Pointer

Self-levelling 4 beam laser 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 and easy-to-use.
Focused laser beam keeps dots small even over long distances for improved accuracy and visibility.
Overmolded housing helps maintain calibration under jobsite conditions.
Locating magnets hold laser to metal track for easy positioning.
Kit box protects unit and helps maintain calibration when stored in gang box.

Includes: 4 x AA alkaline batteries and heavy-duty carry case.

Specifications:
Laser class: 2, <1mW.
Levelling accuracy: +/- 0.2 mm /m.
Self-levelling range: +/- 4°.
Number of beams: 4.
Direction of beams: up, down, level, square.
Indoor visibility range: 25m.
Power source: 6V - 4 x AA.
Tripod connection: 1/4in.
Weight [excluding battery]: 0.55Kg.
Width: 50mm.
Length: 128mm.
Height: 100mm.