Hanna Waterproof Salinity tester

Our new HI-98319 waterproof salinity and temperature tester is perfect for any saltwater aquarium.

A more accurate alternative to refractometers, this tester uses conductivity to determine salinity levels of natural and artificial seawater. Ideal for testing salinity in salt water aquariums, it is quick and easy to use and provides digital readout of both salinity and temperature.