Colorimeter, Chlorine, 0 to 4.0 ppm Range, Accuracy +/-2 Percent Full Scale, Resolution 0.01 ppm, Free Chlorine 0 to 4.0 ppm, Total Chlorine 0 to 4 ppm, Chlorine Resolution 0.01 ppm, Chlorine Accuracy +/-2 Percent of Full Scale, Includes (6) Sample...