Easy steps:

 

Step 1: position and place unit against wall adjust until bubble is level.

Step 2: to turn on depress ON/OFF button to shoot a perfectly straight laser line

 

Use TGE dot to :

Hanging pictures

Build a level wail

Align shelves

Perfect aligning

Decorate your home

Wavelength: 650nm

Laser power: ≤3mw

Level vial accuracy: 30'/2mm

Beam level accuracy: ±1. 5mm/3m

Voltage: 3V