Residual chlorine measuring device Aqua Tab 1 box

Anyone can use it easily, as all you have to do is compare the color of the reagent on a color chart. Economical as you can reuse the reagent by purchasing additional reagents The reagent has a very long shelf life of 3 years. Please use this to help prevent Legionnaires' disease in public baths. Measurement items: Free residual chlorine Measurement range: 0.1/0.2/0.4/0.7/1.0/1.5/2.0 Set contents: 50 tablets or 50 packets of DPD reagent, 2 plastic test tubes, color chart, and carrying pouch