Most levels see the world as level and plumb.
So installing a deck, stair rail, or determining the slope or grade of a ramp is more accurate, simpler, and less time consuming. And it shuts off automatically after 5 minutes when it's nor being used, all this from a standard 9-volt battery. New Aluminum Box Frame means SmartToolTM stands up to rugged job-site conditions. The Calibration Button keeps SmartToolTM factory accurate. You don't even need a level surface.