TruTest provides digital results with the accuracy of a test strip. Accurately reads Free Chlorine, Bromine, pH, and Total Alkalinity .Reads strips in only 15 seconds Simply dip a test strip, place it on the test strip reader, and results will be displayed for you. TruTest is ideal for customers who aren’t comfortable distinguishing color. The package also includes 25 TruTest test strips. Refills available.