For reviewing these EASYTEST 3-in-1 Pool %26 Spa Test Strips, I determined that a suitable test would be a comparison with a different type of test kit that also measures the chemical saturation levels pertaining to pH, chlorine, and total alkalinity. After comparing each test outcome, I concluded that both testing methods produced the same results. While no at home test matches the accuracy of your local swimming pool supply store water analysis, these inexpensive test strips are accurate enough for monitoring your pool water levels between visits to a swimming pool supply store.