AquaChek White makes Sodium Chloride testing easier than ever. You’ll get a specific, accurate reading every time, so you can ensure proper levels of salt in your water. With appropriate salt levels, you can rest assured that your pool’s generator will be able to produce the correct amount of chlorine to keep water clean and free of contaminants. The AquaChek White test strip measures salt levels from 400 to 7000 ppm, and takes just three to four minutes using a small water sample. Comes with complete instructions in 15 languages: English, French, Spanish, Italian, Czech, Danish, Dutch, German, Greek, Hungarian, Polish, Portuguese, Russian, Swedish and Turkish.