Compact Optical Turbidity Sensor 0-4550 NTU

This TSW-20M turbidity sensor module applies optical transmissivity and scattering measurement to determine liquid cloudiness across a calibrated 0–4550 NTU range. At just ~16 g and with minimal footprint, it integrates easily into space-constrained systems. It operates on 5 V DC (11 mA), offering both analog signal output for proportional readings and digital level output for binary decision-making. The probe is partially waterproof — only the transparent optical section may contact liquid; full submersion voids functional integrity. Rated for continuous operation between 30°C and 70°C at 35–95% RH, and storable from –10°C to 80°C, it serves applications including automatic detergent dosing in washing machines, soil-level detection in dishwashers, industrial effluent monitoring, and hands-on learning in electronics education and undergraduate research projects.