Main advantages
Compact, reliable and unpretentious tool
The tool's visual axis remains stable with wind and vibration
Easy alignment (using the tool that comes in the kit)

Specifications
The permissible mean square error of measuring the excess by 1 km of double stroke, mm, below 2.5
Permissible average square error of horizontal angle measurement, below 0,1 degree
Visual tube
Magnification 23Х
Angular field of vision 2 degrees
Smallest sighting distance, m, below 1.2
Diameter of the entrance pupil mm 35
Thread range finder ratio 100+/-1
Limb diameter, mm 107
Limb division value 1 degree
installation level division value 5'
Compensator
Range of compensator operation, above +/-15'
systematic error of the compensator operation for 1 'of the tilt of the level axis, not more 0.5"
Damping magnetic
Weight of the leveling unit, kg 1.5
In the case, kg. 2.8

Delivery set
Level 4N-3КL 1 piece
Case 1 piece
Screwdriver АP6.890.004-01 1 piece
Screwdriver АP6.890.002-04 1 piece
Stud F27.52.901 1 piece
Stud F75.29.004 1 piece
Oiler with oil 1 piece
Certificate 1 piece

Produced at JSC “Production Association “Ural Optical and Mechanical Plant” named after E.S.Yalamov”