The vessels are 73 m long, and deadweight at maximum draft is approximately 1,171 t. The vessels has a sea endurance of 20 days.

The vessels are equipped with machinery to investigate the sea bed and damaged objects lying in depths of up to 1,000 m. MPSV07 class can also support underwater diving operations to depths as great as 300 m.[3][unreliable source?]

The Spasatel Demidov was called upon to control a fire aboard two LNG carriers, in the Sea of Azov, on January 21, 2019.

[4][5] Despite throwing water on both the ships, fire continued for three to five days or more.

[6] In November 2023, Spasatel Karev repaired the Baltika telecommunications cable that had been damaged at the same time as damage occurred to the Balticconnector natural gas pipeline in the Gulf of Finland.