Proteus Instruments, a division of RS Hydro, are manufacturers of the proSONDE multiparameter probe. proSONDE is an innovative fluorescence multiprobe for real-time water quality monitoring for accurate measurement of BOD/COD, coliforms, ortho-phosphate, and ammonium, without laboratory assays or unreliable ISEs. Affordable, and self-cleaning, this innovation has the power to transform water quality monitoring, vital for human health and environmental sustainability.