The Crystal Water Monitor comes with a trial-size tube of 10 Insta-Test 6 Plus test strips to measure the parameters of your water chemistry that change more slowly. The mobile app will request that submit a water report monthly to test pH, Free Chlorine, Total Alkalinity(TA), Total Calcium Hardness(TH) and Cyanuric Acid (CYA) measurements, however, you will have the option to submit a water report at anytime.
If you run out of your Insta-Test 6 Plus test strips you can purchase more on Amazon by clicking on this link: