Les 10 meilleurs Hydrometers en 2026

The HI98319 Waterproof Salinity Tester is a simple, accurate, and economical way to determine salt concentration in saltwater aquariums.

HI98319 can measure salinity up to 70.00 g/L (ppt).

Results are displayed in g/L (ppt), practical salinity units (PSU) or specific gravity (SG) on a large dual-level LCD screen that also displays temperature. This waterproof tester uses a stainless graphite amperometric conductivity probe to determine the salt content of water.

AQUAVIE - Thermo Densimeter with test tube: Precision & Simplicity

The AQUAVIE Thermo Densimeter is the essential ally for all marine aquarium enthusiasts. Thanks to its formidable precision and its integrated thermometer , it allows you to monitor the salinity and temperature of your aquarium with ease. Made of high-quality glass, it guarantees a reliable and clear reading of the parameters essential to the health of your corals and fish. Easy to use, it comes with a stable test tube for practical use with each measurement. Whether you are a beginner or an expert, this tool will quickly become a reflex for maintaining a healthy and balanced marine environment .

• Accurate reading of salinity and temperature in 1 minute
• Built-in thermometer with automatic correction to 25°C
• Stable test tube and glass design for high durability

This high-end plastic measuring cylinder is transparent. It has a stable base and a spout. With a height of 36 cm , it is perfect for determining density using the Tropic Marin ® HIGH PRECISION HYDROMETER .

Now it is no longer necessary to stop the pump to take a measurement in the aquarium. Just take the density monitor out of the aquarium. Real child's play!