Height accuracy of 1.0mm can be achieved using fiberglass RAB Code staves. With the top-of-the-line invar RAB-Code staves, 0.6mm accuracy is a reality (Standard deviation for 1km double-run leveling).
The SDL30 employs a market proven pendulum compensator with magnetic damping system. Its working range is ±15'.
The SDL30 calculates height difference, elevation, setting-out and more. When measuring height of the ceilings, bridges and other objects, there is no need to change the measuring mode when the staff is held upside-down.
The internal memory holds 2,000 points of data in a maximum of 20 job files.
Measured data can be exported in CSV format using the software "SDL TOOL".