🐟Marine hydrometer: Tests salinity and specific gravity in marine aquariums to help maintain a healthy tank

🐟Easy to Read & Use: Simply dunk in aquarium to fill with water, then set on level surface to read. The easy-to-read swing-arm pointer and extra wide stable base provide an accurate test result.

🐟Specification: The reading is temperature-corrected and accurate to +/-0.001. The unit of specific gravity is 1. 000-1. 030 (ppt value: 0-43.9 degrees), the safe area is 1.020-1.023 (ppt value: 30.2-34.2 degrees), and the low specific gravity area is 1.000-1.019 (ppt value: 0- 28.9 degrees), the higher specific gravity area is 1.024-1.030 (ppt value: 35.5-43.9 degrees).

🐟Safe Material: The salinity tester is made of transparent acrylic material, which is relatively hard and easy to read the salt and specific gravity of your marine aquarium. After use, soak this saltwater meter in mild acid(vinegar) for 30 minutes, rinse with tap water and air dry.

🐟Wide Usage: Fit for brackish and reef salt marine aquariums. Perfect for testing both salinity and specific gravity of your brackish and marine tank.Includes salinity and specific gravity scales.