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Instant Ocean SeaTest Hydrometer
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
Instant Ocean Hydrometer is 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.
Product Features Accurate to 0-001 Durable, Permanent Needle Mount Easy-Read, 2-Color Scale with Safe Zone Extra-Wide Stabilizer Base Easy Fill convenience -- NO WET HANDS!