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Accuprobe Hydrometer

"Dry Hands" design avoids contamination of aquarium or water sample
Accurate to 0.001 specific gravity and salinity (PPT) measurements
Auto-temperature correcting design
Designed to give a temperature-corrected reading in warm water aquariums – 68°F to 85°F (20°C to 30°C)
Self-leveling, hanging device included

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