Functions
project laser level (in a row), laser cross line, laser positioning spot
With a flexible rule

Wavelength：650nm-635nm
Light power：≤1mw/≤5mw
Laser level: grade П
Laser level precision：±2mm/6m
Level bubble precision：0.057=1mm/m
Working environment：5℃-40℃
Working voltage：2×1.5AAA