Fydun Aquarium Salinity Tester, Accurate Meter Automatic Hydrometer Salt Water Hydrometers Fish Saltwater Water Measuring Device for

Wide Range Of Applications : Suitable for salt water and sea water fish . for testing salinity and specific gravity of saltwater and seawater , including solubility and specific gravity scales.

APPLICATION RANGE: The aquarium marine sea saltwater is suitable for warm water (20-30℃). A change in temperature will cause a change in the reading. Unit specific gravity is accurate to ±0.001.

Fit for brackish and marine aquariums. for testing both salinity and specific gravity of your brackish and marine .

Accurate Sea Hydrometer : Very accurate measurement readings, please rest assured to purchase. Suitable for fresh water and sea water

Premium Quality : Accurate, and easy to read. And each hydrometer has a engraved patent number.