The Micro Check Test Strips are an accurate, inexpensive and safe alternative for reagent chlorine testing. Quick, accurate and easy to use results are achieved in under 1 minute. Free Chlorine with sensitivity as low as 0.05ppm (mg/L).
Micro Check free, detection levels ppm (0, 0.1, 0.2, 0.4, 0.6, 0.8, 1.2, 1.5, 2.0, 2.6, 4.0, 6.0, 10).