Instant Ocean SeaTest Hydrometer


The Instant Ocean SeaTest Hydrometer is a reliable and easy-to-use hydrometer that is perfect for testing the salinity and specific gravity of marine aquariums. With its wide stabilizer base and clearly marked scale, it is easy to read and use. The Instant Ocean SeaTest Hydrometer is also accurate and precise, with readings accurate to +/- 0.

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  • The product is an accurate, reliable water test equipment that is vital to creating and sustaining a healthy, successful marine environment.
  • It is easy to read and simple to operate.
  • The product has a precise, full range reading accuracy of 0
  • It comes with a two color scale with a safe zone
  • The extra wide stabilizer base makes it easy to fill without having to touch the water

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