|Precision level of 1st order NABON|
No. 4050 NABON
For 1st order levelling, precision levelling of ground subsidence, deformation measurements as well as for engineer’s measurements of highest precision in machine- and airplane construction. Very bright telescope (aperture 50 mm) and very high magnification (42x), reading of the telescope level (8“/2 mm) by optical coincidence in the telescope field of view. Micrometer with plane parallel glass plate (measuring range 5 mm; reading 0,05 mm)., Mean error per km according to DIN 18723: +/- 0,2 mm.