Spirit level vial construction

Spirit level with hand grips

Spirit level with integrated inclination adjustment mechanism

Spirit level with multiple bubble vials

Spirit level with top window mounting

Sprinkler head leveler

Square level measuring tool

Stable plumb beam optical projector

Stand-off arrangement for levels

Start-up conditioning means for an azimuth reference

Static non-swinging course determining device on a vehicle

Steering wheel centering device

Steering wheel centering tool

Straight edge level

Strap-on leveling/plumbing device kit

Strata movement indicator

Strata movement indicators

Stretch level

String line tool and sheaths therefor

Structure leveling system