boxtech Aquarium Marine Test Sea Saltwater Hydrometer Reef Ocean Hydrometer Salinity Meter for Pool Aquarium Water Salinity Specific Gravity Test

Key Benefits

• 🐠 Marine & Brackish Use — Designed for brackish and reef salt marine aquariums, suitable for testing both fresh water and sea water environments.
• ⚖️ Dual Measurement Scales — Includes both salinity and specific gravity scales on a single instrument for comprehensive water testing.
• 🎯 High Accuracy — Temperature-corrected readings accurate to ±0.001 specific gravity units with specific gravity range of 1.000–1.030.
• 🛡️ Safe Zone Indicators — Displays safe zones marked at 1.020–1.023 for specific gravity and 27–31 ppt for salinity.
• 👁️ Easy-to-Read Design — Features a swing-arm pointer and extra-wide stable base for accurate, straightforward test results.
• 🧼 Simple Maintenance — Clean by soaking in mild acid (vinegar) for 30 minutes, rinsing with tap water, and air drying; do not disassemble.