Hach NT3100sc UV Nitrate Sensor – Proven nitrate measurements made more accessible. Improve your experience in nitrate measurement with Hach’s new NT3100sc sensor. Backed by a legacy of reagent-free UV absorbance technology expertise, Hach’s NT3100sc UV Nitrate Sensor is equipped to meet your unique application needs. Whether measuring nitrate in municipal sewage treatment plants, surface water, untreated water or treated drinking water, you’ll have the choice of 3 different path lengths to fit your measurement ranges and turbidity compensation needs. NT3100sc replaces Nitratax plus sc and Nitratax eco sc.