Hanna HI-98319 Marine Waterproof Salinity Tester Pond goods Its two optical interfaces capture

Its two optical interfaces capture emitted light from both sides of a vertical plasma — with only a single extra reflection

Inline Check Valve

Ensure you supplement their diet with pellet food to prevent this

Low voltage for extra safety

The new packaging contains 25% extra product for no extra cost

Hanna HI-98319 Marine Waterproof Salinity Tester Pond goods Its two optical interfaces captureIdeal for testing salinity in salt water aquariums, it is quick and easy to use and provides digital readout of both salinity and temperature. Salinity results are displayed in either parts per thousand (ppt), Practical Salinity Units (PSU), or Specific Gravity (SG). Our marine salinity tester is supplied complete with batteries and solutions allowing you to start measuring right away. Also displays temperature. This pocket sized meter is waterproof