ChlorKing CHLORKING5000HHS Salt Sensor CHLORKING 5000 HHS Handheld Stick Digital Toroidal Salt Tester - The most cost effective, reliable, and easy to use salt tester available. Simply submerge the stick meter into the water you want to test, push the button and you have an immediate salt reading in PPM on your screen. It features a bright, easy to read digital display, a toroidal probe that does not require calibration, waterproof construction, and temperature compensation.