Abstract: The invention relates to small-sized mobile robotic fire extinguishing units to monitor extreme situations and conduct recovery operations in the hazardous area under extremely dangerous conditions and/or in inaccessible areas, including nuclear power plants. The fire extinguishing unit includes a tracked assembly with housing mounted on it, a control panel and a drive part with an accumulator battery inside the housing, a fire extinguishant feed element mounted on the housing with remote control capability, video surveillance system, a connecting pipeline, the outlet of which is connected to the inlet of the fire extinguishant supply element, the connection pipeline is installed inside the housing.