Master Your Saltwater Environment

Maintaining a stable reef tank requires more than luck. Corals and marine fish react poorly to even tiny shifts in salt levels. You need a tool that delivers high-speed results and survives a splash. The Marine waterproof salinity tester replaces fragile glass hydrometers with a modern, digital solution. It gives you the confidence to manage your aquarium like a professional.

Why Choose a Digital Salinity Tester?

Old-school swing-arm hydrometers often trap air bubbles. These bubbles lead to false readings that can harm your livestock. A digital tester uses conductivity to calculate exact salt content instead.

• Fully Waterproof: You can drop it directly into the tank or sump without damaging the internal electronics.

• Automatic Temperature Compensation: The device adjusts for heat or cold automatically. This ensures your specific gravity readings stay true.

• Dual Display: View both salinity (ppt or PSU) and temperature on a single, high-contrast screen.

• Calibration Ease: A simple one-point calibration keeps the sensors sharp and accurate for months.

Built for the Modern Reef Keeper

Aquarists and commercial hatcheries trust the Marine waterproof salinity tester for its rugged build. The slim design fits into tight filtration chambers where bulky tools fail. It features a replaceable electrode to extend the life of your investment. Whether you maintain a small nano-reef or a massive public exhibit, this tool provides the consistency you need.

Precision Results Made Simple

Stop squinting at blurry lines on a glass tube. This digital tester provides a clear number in seconds. It simplifies your water change routine and helps you identify evaporation issues early.

Invest in a Marine waterproof salinity tester today. Protect your underwater world with the best technology available.

HI98319 is a digital salinity tester designed specifically for saltwater aquariums that displays results in parts per thousand (ppt), Practical Salinity Units (PSU), or specific gravity  (S.G.). This waterproof tester uses an amperometric conductivity probe to determine the salt content in the water.

• Exposed Temperature Probe for Fast Response
• Measures salinity up to 70.00 ppt
• Waterproof and designed to float.