Precise laser distance sensors. Exact sensors for measurement ranges up to 1000 mm, industrial series for measurement ranges up to 500 m. Distance measurement with precise laser distance sensors for "small" measurement ranges from 16 mm to 1000 mm (series OWLE/F, OWLG, AWLG and more). Measurement according to optical triangulation principle. Accurate laser distance sensors for distance measurement with "medium-sized" measuring ranges up to 13 m (series OWTG, OWTH). Precise laser distance sensors for "larger" measurement ranges from 5 mm up to 150 m (series OWTB, OWTC). Optical principle for phase shift.