Instant Ocean SeaTest Hydrometer

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Brand Instant Ocean Special Feature High Accuracy Color Whites & Tans Included Components Instant Ocean Full-range Hydrometer Outer Material Plastic Display Type Analog Product Car e Instructions Hand Wash Only Unit Count 1 Count Power Source Manual Model Name Instant Ocean Hydrometer About this item Marine hydrometer: Tests salinity and specific gravity in marine aquariums to help maintain a healthy tank Accurate: Precise, full-range readings - accurate to +/- 0 Ready to use: Simply dunk in aquarium to fill with water, then set on level surface to read Easy to read: Clearly marked to show results Extra-wide stabilizer base: Two-color scale with a safe zone for simple results Show more