Resolution : 0.01 (0~100 NTU), 0.1 (100~999 NTU), 1 (999~1100 NTU). Accuracy :± 2% (0~500 NTU) ± 3% (501~1100 NTU). Stray Light : <0.02 NTU. It includes a light source and a detector to monitor the light scattered at 90 degree with respect to the incident beam.
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