It is used for sighting of ZAP 23 anti-aircraft automatic sight and other movable launchers on air targets.
0-05 - Value of a scale division, artillery thousandths (1/6000)
≤ 0-01´ - Parallax of the scale, artillery thousandths (1/6000)
from –45°C to +50°C - Operational Temperature Range
120 x 133 x 140 mm - Sizes
0,09 kg - Weight