This handheld detector measures wastewater sludge interface levels in clarifiers, tanks & lagoons, and helps provide valuable sludge level profiles. It allows users to eliminate unnecessary pumping/dredging, monitor sludge bed depth for regulatory compliance and prevention of carryover, and optimize sludge density. It uses high-intensity infrared light to locate both sludge blanket and overlying cloudy layer, and is able to detect concentrations ranging from light flocs to thick blankets. Compact, weatherproof, convenient for boats/catwalks. No calibration necessary. Read more