These prismatic observation devices are destined for assembly in tanks, combat cars, armoured vehicles etc. They serve for terrain observation. They are adapted to exploitation in allatmospheric and terrain conditions. Articles with symbols OPO are equipped with heating system. Articles signed with letter F have the optical system which transmits light in the visible band and which absorbs the laser light that length is 1,064 nm.
| Kind of device | In exchange for | Examples of application |
|---|---|---|
| OP-115, OP-115F |
TNPB-B, TNP-A | BRDM-2 and versions |
| OPO-115, OPO-115F |
TNPO-115 | BRDM-2 and versions |
| OP-350F | TNP-350B OP-350 |
BWP |
| OP-65F | TNPA-65 | T-72 PT-91 |
| OPO-31F | TNPT-1 | BRDM-2 and versions |
| OPO-170F | TNPO-170A/M OPO-170F |
GM-568 GM-578 BWP |
| TNP-165F | TNP-165A/M TNP-165F |
T-55 T-72 PT-91 |
| OP-160, OP-160F | TNP-160 | T-55 |
| 554-35-5 sb BM (OP-20) |
T-55 | |
| Ł36 65 sb 2B (OP-21) |
T-55 |