LaMotte R-2056 Color Q PRO Liquid Reagent Refill, Pack of 7 The unique, multi-test ColorQ pool and spa hand-held photometer reads SEVEN test factors (Free Chlorine, Total Chlorine, Bromine, pH, Alkalinity, Calcium Hardness, and Cyanuric Acid) directly on a digital display. Featuring an innovative dual-optic design the ColorQ provides more accuracy and more test factors The ColorQ eliminates the need to visually determine slight color variations or use look-up tables, thus taking the guesswork out of pool side water analysis.