A parallel plate micrometer can be fitted over the telescope objective to improve accuracy.
The parallel plate micrometer allows direct readings to 0.1mm and estimated readings to 0.01mm.
This makes the NAK2 the ideal precise level for industrial measuring tasks or deformation studies.
For reading horizontal angles, the NAK2 level has an internal glass circle implemented.
Combined with the stadia calculation of distances from staff readings the NAK2 circle adds the application benefit of detail survey work.