Review on ⚒️ Efficiently Level Drills & Levels with Vertical Horizontal Battery Construction" by Shane Schobinger

Everything works fine but a few features are missing. First, there must be a bubble in the device to align it. Anyway, you'll have to guess when you'll be hammered by a very sharp out-of-level alarm. Second, the plastic guards around the lasers have thick walls that block the laser at certain angles and create dead zones. You could remove the tread legs at the top corners, or at least make them thinner.