
Tester for measuring active oxygen and pH levels. The tested water changes color and is compared with the color shade on the tester, which is assigned a numerical pH value or free chlorine value. The reagent tablets are intended exclusively for chemical analysis and must not be used for any other purpose.
The tester comes with a pack of 20 tablets for measuring pH and 20 tablets for measuring active oxygen.
The pH value of water expresses the degree of acidity or alkalinity of a chemical substance. The ideal value for swimming pools is 6.8 - 8.2. A pH higher than 8.2 leads to the formation of various mineral cloudiness and the buildup of limescale and other deposits. A pH lower than 6.8 causes corrosion of metal surfaces. The pH value affects the solubility and effectiveness of the disinfectants used.