RMS error in elevation measurement 
per 1 km of double run, mm ..... 3
Telescope magnification .....  22x
Minimum sighting distance, m .....  1.2
Compensator operation range ..... ±15’
Value of plate level division  ..... 10’
Mass of level, kg  ..... 1.3
Mass of level in case, kg ..... 2.6
Overall dimensions, mm  .......  165x140x135