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Hydrometer Saltwater Aquarium Salinity Tester for Saltwater Aquarium Hydrometer for Testing Salinity and Specific Gravity

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$8.79

$ 3 .99 $3.99

In Stock
  • 【Material】The sea hydrometer is made of plastic, the structure is sturdy and resistant, not easy to be damaged, and has a long service life.
  • 【Unique Design】Transparent design, easy to read accurate measurement readings, please wash with water after each use.
  • 【Precise】Our seawater hydrometer has clear scales and small errors, with an accuracy of +(-) 0.002 specific gravity units.
  • 【Tips】Please use it at a depth of 6in/15cm to avoid errors caused by inhaling the oil film on the water surface.
  • 【Application】Suitable for testing salinity and specific gravity in saltwater and marine aquariums.


Hydrometer Saltwater Aquarium Salinity Tester For Saltwater Aquarium Hydrometer for Testing Salinity and Specific Gravity


Sue Tulp
Reviewed in the United States on January 20, 2025
Simple to use and read. Decent quality. Works well.
Patricia Cottret
Reviewed in the United States on June 14, 2023
This works as expected. The numbers are not very dark on the one I got, so it's not so easy to read. I do know where the needle needs to point to, so it's easy enough for me to use that I would not need to replace it. I imagine over time, the color will wear off any way.
MSHA
Reviewed in the United States on February 3, 2023
I misplaced my hydrometer and ordered this assuming it would work just as well. Nope. The salinity lever barely moves and continues to stick. Having used them for decades I washed it a couple of times hoping it was just stuck and that there were no air bubbles but this doesn't make a difference. The lever is also in crooked and the printed scale is nearly worn off. The item is cheap and will not register correctly.
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