The turbidity sensor principle is based on combined infrared absorption and scattered light methods. The ISO7027 method allows continuous, precise turbidity measurements. The ProCon® TB550 uses infrared double-scattering light technology, which remains unaffected by chromaticity, providing accurate sludge concentration values. It ensures stable data, reliable performance, and comes with a self-diagnosis function for continuous precision. Easy installation and calibration make setup quick and simple, while the automatic self-cleaning function ensures long-lasting reliability.