Free chlorine level meter, pH, total alkalinity, cyanuric acid, total hardness, total chlorine and total bromineDescriptionThe Aquachek Select 7 in 1 kit is ideal for consumers who want a more complete water analysis of your pool or spa. Receive 7 reference values ??with only one strip. Have free chlorine results, pH, total alkalinity, cyanic acid, total hardness, total chlorine and total bromine in mere seconds Way of useRemove an Aquachek Select 7 in 1 analytical strip from the packaging and dive it into the pool water or spa immediately removing it. Hold the analytical strap with the face of the tests facing up for 15 seconds (without removing excess water) and compare the colors with the table provided then.