... and SPA, Ideal for simple operations to test water PH and C12 , no more chemicals, swimming pool spa ... water PH/chlorine testerFeatures:1. Essential tool for swimming pool , ... Sunna and SPA, Ideal for simple operations to test ter PH and C12 , no more chemicals, no more guess-work2. ... .2 to 1.7 ppm4. Safety measure range for PH Level: 7.2 to 7.85. Powered by: 1 ...