You don't have to buy a special laser level tripod for this. Most laser levels either come with a threaded hole that will work with any standard camera tripod, or they come with a detachable base that can be attached to a standard tripod.

What are 2 things you should do before you use a laser level?

Before you can use a laser level, you need to connect a compatible battery to the device according to the instructions that came with it. Then, you need to determine where you want to place the laser level tripod, and make sure the ground is dry so it doesn't move away from the desired position.

What is the main concern when using a laser level?

Whenever you are using a laser level, safety should be your first concern, especially the protection of the eyes. Powerful laser beams are wonderful for finding the accurate level, but this laser beam can equally be threatening in contact with the eyes.