This green beam cross line  laser level is widely used in the construction sector for measuring, leveling, and aligning.

VH680
Laser Module：Single glass lens
Exterior sizes：Φ130mm x 186mm
Laser diode： Horizontal  532NM    Vertical  532NM
Up&down point   650NM
Accuracy：Horizontal line： ±1.0mm/5M
Vertical line： ±1.0mm/5M
Line Width：≤1.8mm/5m
Angle of projection：Horizontal＞100°   Vertical＞140° 
Beam change： a、Horizontal       b、Cross line
c、 Vertical      d、 Up point & down point
Leveling range： ±3°
Weight： about 1kg
Power supply： 2 AA batteries or 2 CR123A (DC 3V)
Output Power：< 5mw
Operating temperature：0℃ ~ +40℃
Operating Time：Single line：8Hours
Central screw： 5/8" × 11