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Surveillance and communications equipment
A new turret was installed, equipped with the Kalina fire control system with an integrated tactical level combat information and control system [14] .

Armament and armor
A new automatic loader and a modernized 2A46M-5 gun were installed , as well as a remote-controlled 7.62 mm UDP T05BV-1 anti- aircraft gun .
Particular attention was paid to improving the commander's ability to search for targets and control fire, which are now equally effective both day and night [15] .