Turbidity Photo Sensor for TU90/NT90 TURBIDITY PHOTO DETECTORSKU: TU SENSOR$0.00PriceQuantity*Add to CartProduct InfoThe TU4H is a turbidimeter detector sensor that is installed within the turbidimeter to measure turbidity in real time and continuously. Specification Method US EPA 180.1 Method / 90˚ Scattering Light Method Type Photo Sensor Range 0~100 NTU Resolution 0.001 NTU Accuracy ±2.0% Repeatability ±2.0% Response time <60 sec