The Insta-TEST® 6 Plus pool and spa strip measures free chlorine 0 to 10 ppm, bromine 0 to 20 ppm, total chlorine 0 to 10 ppm, total alkalinity 0 to 240 ppm, pH 6.2 to 9, total hardness 0 to 800 ppm and cyanuric acid (stabilizer) 0 to 250. This test strip is a dip-n-read strip with instant results. Each bottle includes 50 test strips packaged in a waterproof PopTop bottle with hinged cap. The Insta-TEST® 6 Plus is the ultimate pool strip allowing the user to measure all six tests to help maintain perfect water balance. The bottle has a molded desiccant liner, which protects the strips from moisture and UV light. This product is available with trilingual (English, Spanish, French) instructions.