Using the same chemistry as an EPA Approved, patented indicator that resists interference from monochloramines while accurately detecting free chlorine levels, the WaterWorks 2 test strip also possesses a separate test pad that accurately detects total chlorine levels at the same time.

• Tests for Free and Total Chlorine at the Same Time
  
  
• Detection Range:  (0, 0.1, 0.2, 0.5, 1, 1.0, 2.5, 5.0 ppm)
  
  
• Manufacturer Part Number:  480655
   
• Kit Contains 30 Individually Foil-Packed Test Strips Making WaterWorks 2 Ideal for Field Work.
   
• Total Test Time of Approximately 30 Seconds.
   
• Uses Same Chemistry as the EPA Approved SenSafe Free Chlorine Water Check for Free Chlorine Testing.
   
• Requires No Meter or Electronic Device and Accurately Detects Free/Total Chlorine Levels as Low as 0.1 ppm.
   

Having the power to test for free chlorine and test for total chlorine at the same time makes chlorine testing fast, easy and inexpensive while also making it possible for folks whose city water gets treated with chloramines to know how much or how little disinfectant their water supply contains.

Simply subtract the free chlorine concentration from the total chlorine concentration to determine the water sample's combined chlorine, or chloramine, concentration.