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Test Instructions - 1 step only


Keep out of reach of children.
Attention: Before any use of the vial test or measuring scoop, make sure it is washed with RO water only and dry it up with a soft paper.


Results of Royal nitrite professional test kit are in PPM.
Each kit will give you 100 tests.


1 step only:


  1. Using the 5 ml syringe, add 5 ml of aquarium water to the test vial.
  2. Add to the test vial – 2 drops of  NO2  reagent and swirl gently for 30 seconds.
  3. Allow it to stand for 5 minutes.
  4. Hold the test vial next to the supplied color chart on a