Automatic levels offer precision to the millimeter. They are used to establish grades, lines and
leveling points and check elevations. They are used by builders, engineers and land surveyors
in applications that include building construction, road construction, landscaping and
excavation. Although they are highly accurate, they must be mounted on a tripod because
they require a stable foundation. The combination of tripod and level is bulkier and heavier
than a hand level.