Used to enable sighting with ZAP 23 anti-aircraft automatic sight.
Value of a scale division, artillery thousandths (1/6000): 0 – 05
Parallax of the scale, artillery thousandths (1/6000): ≤ 0 – 01′
Operating temperature: -50°C to +50°C
Storing temperature: -55°C to +60°C
Weight: 0.900 kg
Dimensions (LxWxH): 120 x 133 x 140 mm