Nitrate / Nitrite test strips for water quality testing are the ideal solution when portable, reliable results matter. Whether you are testing well water or your tap at home, these strips are a great choice. Designed to be safe and simple, these strips require no technical training to achieve results. Two units of measure are available: The first solution reports results in Nitrogen (as N). The second solution reports results as Total Nitrate (as NO3) or Nitrite (as NO2). Accurate results are achieved in under 2 minutes.