Self-leveling line laser

Green laser level
Working range: 0 ~ 30 m
Levelling accuracy: ? 2 mm @5 m
Line accuracy: ?2 mm @5 m
Levelling time: ?3s
Self-levelling angle: ?4?
Laser type: 520 ? 5nm
Laser Class ?<1mW Operating temperature: 0 ~ +40? Operating temperature: -10 ~ +50? Batteries LR6 AA (1.5V) x 2 Includes: Laser cross lock function Horizontal and vertical line function 1 Piece Magnetic bracket Packed by canvas bag.