The salinity meter is designed to measure the sodium level in your swimming pool water. It is waterproof and can be dipped into a sample of pool water while the results are ready in just seconds.

This salinity tester is very helpful to be able to verify the salt level independently from the generator's display. It saves much trouble in going to the local pool shop where people use the same meter to check your water sample. The meter avoids adding too much salt or letting the level fall too low.