A laser line level is a gadget that combines a spirit level and/or plumb bob with a laser to properly portray a horizontal or vertical lit line on a surface.
https://www.cordlesspowertools.ca/generators/
https://www.cordlesspowertools.....ca/tools-accessorie
https://www.cordlesspowertools.....ca/cordless-angle-d
https://www.cordlesspowertools.....ca/dewalt-angle-dri
https://www.cordlesspowertools.....ca/makita-angle-dri
https://www.cordlesspowertools.....ca/milwaukee-angle-