Abstract: The invention relates to an admixing system for fire-extinguishing units, for producing a mixture of a fire extinguishant and a fire extinguishant additive (premix) by admixing a fire extinguishant additive, in particular a foaming agent, into a fire extinguishant, in particular water, said admixing system comprising a motor that can be driven by a fire extinguishant flow, and a mixing pump used to deliver the fire extinguishant additive, which is coupled to the motor and driven thereby. The admixing system comprises remote control means for transmitting and executing a command for the automatic start-up or shut-down of the motor and the mixing pump, as well as remote read-out means for automatically detecting and transmitting data relating to the state of the admixing system. The presence of an operator is therefore not required with the admixing system.