... pool , Sunna and SPA, Ideal for simple operations to test water PH and C12 , no ... PH/chlorine testerFeatures:1. Essential tool for swimming pool , Sunna and SPA, Ideal for simple operations to test ter PH and ... read dial and easy to use it3. Safety measure range for Chlorine Level: 1.2 to 1.7 ppm4. Safety measure range ... for PH Level: 7.2 to 7.85. Powered by: 1 x AA ...