• Precise measurement of chlorine, bromine, and pH to keep water clean and safe. • Includes Phenol Red reagent (20 mL) for pH and OTO (20 mL) for chlorine and bromine. • Dropper system that facilitates exact dosing in each measurement. • Easy and fast use by color comparison with the included scale. • Suitable for all types of water such as pools, jacuzzis, spas, and treated water systems. • Reusable and durable case with integrated compartments for water samples.