100 StripsTests for: Total Chlorine, Total Bromine, Free Chlorine, pH, and Total AlkalinityAquaChek Pro offers service professionals a convenient and easy 5-way test for all of the critical daily parameters. Save time and money when you get fast, accurate results for free and total chlorine, total bromine, pH and total alkalinity in about 30 seconds. Partner with AquaChek Pro II for testing those parameters that require only monthly monitoring. Dip an AquaChek Pro test strip in your pool or spa water for one second and remove. You’ll get test results in seconds!For a clean and healthy pool, test the water at each end a minimum of twice a week!Directions in both English and Spanish.Tests for 5 important chemistries in seconds: Total Chlorine, Total Bromine, Free Chlorine, pH, and Total Alkalinity.