Veolia�s SWARM service offering, designed around connected multi-parameter sensors, enables unusual changes in the quality of surface water to be rapidly detected. The buoy measures the main water quality parameters and communicates the data real time for analysis. In addition to the measurement system, the buoy comprises an anchor, a float and an energy recovery module enabling self-sufficiency. The buoy can be installed directly and easily in any water body or course. With the SWARM system, the water operator can constantly monitor changes in key water quality parameters and the state of surface water: conductivity, temperature, speed, depth, dissolved oxygen, pH, turbidity, organic materials, chlorophyll A, phycocyanin and phycoerythrin.