BioGuard pioneered the idea of computerized pool water analysis and have continued to research and refine the process. As a result, Pool Time is able to provide the fastest and most accurate water testing in the industry. Customers will receive a customized and personalized report detailing the type and quantity of chemicals needed to achieve proper water chemistry, as well as a detailed maintenance program. The Accu-Scan accurately measures total chlorine, free chlorine, and bromine residuals, pH, total alkalinity, calcium hardness, cyanuric acid (stabilizer/conditioner), biguanide, hydrogen peroxide, copper and iron. Accu-Scan provides a very detailed report of your pool’s status and what adjustments need to be made in order to keep your water chemically balanced and your pool looking and feeling great.