The Stabila LAX 400 Multi-Line Laser rotates horizontally through 360° for line marking and levelling around an entire room It has a manual alignment function where two lines form a 90° angle With fine adjustment the laser lines can be pivoted to a target position without losing the position of the plumb-line dot The laser has a vertical beam which is directed downwards and is clearly visible through the adjustable feet Above the two vertical lines intersect precisely over the plumb line dot The LAX400 is ideal for transferring a layout from floor to the ceiling and for quick and accurate plumb bobbing It has a shock-absorbent soft-grip case Specification Level Accuracy± 03 mmm Self-Levelling Range± 40° Working Range 20m Power 4 x AA batteries supplied Average Battery Life 10 Hours Tripod Thread 14in Laser Class 2 Line Straightness± 02mmm 90° Angle Precision±03mmm Protection Class IP54 rated against splash & dust damage