The Insta-TEST® 3 Plus pool & spa strip measures Free Chlorine 0-10 ppm, Bromine 0-20 ppm, Total Alkalinity 0-240 ppm, and pH 6.2-9.0. This test strip is a dip-n-read strip with instant results. Each bottle includes 50 test strips packaged in a waterproof blue PopTop bottle with a hinged cap.

Free Chlorine   0, 0.5, 1, 3, 5, 10 ppm

Bromine   0, 1, 2, 6, 10, 20 ppm

Alkalinity  0, 40, 80, 120, 180, 240 ppm

pH  6.2, 6.8, 7.2, 7.8, 8.4, 9.0