Aquarium Salinometer / Hydrometer — Simple, Accurate Salt Measurement Key benefits Measures salt content and salinity reliably so you can maintain stable conditions in seawater tanks and other water systems. Fast, easy-to-read results with a highly sensitive probe for quick checks during routine maintenance. Practical, simple design that is comfortable to use and suited to repeated testing. Functions and compatibility Function: professional salt-content testing (salinometer / hydrometer) for seawater aquarium monitoring. Compatible with swimming pools, aquacultures, aquariums (including marine tanks), and water laboratories. Provides accurate test results to support dosing, water changes, and water-quality management. What makes it stand out Professional aquarium test device: designed specifically to test salt content in seawater aquariums and deliver accurate readings. Highly sensitive probe: responds quickly to changes in salinity for prompt, actionable information. Easy to use and read: minimal setup—dip the probe, wait briefly, and read the value—making routine checks fast and convenient. Practical use scenarios After a water change in a marine aquarium: verify salinity before returning livestock to ensure stable conditions. Aquaculture monitoring: check tank salinity to keep shrimp, fish, or other stock within target ranges for growth and health. Pool and lab checks: confirm salt levels in small pools or laboratory samples where salt concentration must be monitored. Performance and handling Designed for practical day-to-day use with a straightforward interface that reduces user error. Quick response time and clear readout support timely adjustments and consistent water management. What you get A professional-grade salinometer / hydrometer that combines practical design, high probe sensitivity, and accurate salt-content testing for aquariums, aquaculture, pools, and laboratory use.