ColorQ 2X waterproof photometer for the pool and spa professional. Liquid tests for free and total chlorine 0-10ppm, bromine 0-22, pH 6.5-8.5, alkalinity 0-300, calcium hardness 0-600ppm and tablet test for cyanuric acid 0-150ppm.  144 tests chlorines, bromine and pH, 100 tests for alkalinity,…