Precalibrated at 3000 ppm salt (NaCl) at 25°C / 77°F
Salt Range: 0-5000 ppm or 0.0-0.5 %; Temperature Range: 0-55 °C or 32-130 °F; Waterproof Rating: IP65
*** Check out the SALT-3050 + TS107 Test Strips COMBO
*** Works ONLY for Salt Water Pool and Koi Fish Pond Salt level testing.
*** Will NOT work for Sea/Marine/Salt Water Fish Tank Salt level testing *** Will NOT work for Food salt level testing! *** Will NOT work for any other application!