Hanna Salinity Tester HI98319

Achieve precise salinity control in your reef aquarium with the Hanna Instruments HI98319 Marine Salinity Tester, a compact digital meter designed to deliver fast, accurate readings for saltwater systems.

Unlike traditional refractometers or hydrometers, the HI98319 uses advanced conductivity measurement to determine salinity, providing reliable digital results in seconds. It displays readings in multiple units—including parts per thousand (ppt), Practical Salinity Units (PSU), and specific gravity—giving you full control over your reef parameters.

Built for real-world aquarium use, this waterproof tester features automatic temperature compensation (ATC), a durable floating design, and a high-precision graphite sensor that resists oxidation for consistent long-term performance.

Ideal for reef tanks, quarantine systems, and saltwater mixing, the HI98319 is a must-have tool for hobbyists who demand accuracy and stability in their water chemistry.

🐠 Key Features

• Digital salinity readings with high accuracy and repeatability
• Measures in ppt, PSU, and specific gravity (S.G.)
• Automatic temperature compensation (ATC) for precise results
• Waterproof, floating design for aquarium use
• Graphite conductivity probe resists oxidation and improves reliability
• Compact, handheld design with easy two-button operation