Feature:

This 850nm laser module with driver built-in is an industrial electronic component and used for Industrial testament, Lab.
The laser module is and precise and sensitive optical instrument.

Before carrying on some laser DIY activities, please read about the technical information first and protect your eyes before laser ray.
Be sure the operator has experience in optics DIY or testing

Package:

1pc 850nm 3.5mW IR Infrared Laser Dot Module Focusable
2pc Caps (Line & Cross）
1pc 12mm Holder