Finaly got my Salt system working

[waterbear]

As a general statement, the test strips for salt are probably not that reliable. And for what it's worth, the little battery powered testers used by the pool stores also vary.

FWIW, the salt test strips are actually titrators and, if used properly (let them sit in the sample for a full 10 minutes) are very good and less prone to operator error than the trickier chromate/silver nitrate titration test. Salt meters range from excellent to terrible and a lot depends on keeping them calibrated against a standard salt solution.