Hydrometer Saltwater Aquarium Salinity Tester for Saltwater Aquarium

• 【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.

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