Instant Ocean Clear Aquarium Hydrometer

Accurate, Reliable Water Test Equipment Is Absolutely Vital To Creating And Sustaining A Healthy, Successful Marine Environment. Easy To Read And Simple To Operate, The Instant Ocean Hydrometer Delivers Precise Full-range Salinity And Specific Gravity Readings -- Accurate To ± 0.001 -- And Does It Each Time, Every Time.

Key Benefits

• 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.