Ista Hydrometer

The Ista hydrometer provides a quick and easy way to measure the salinity of the water in your marine aquarium.

High precision and compact design that provides accurate readings that aquarists of any level can understand. Accuracy to 0.001 specific gravity units. This unit has a large numeric display including highlighted 'sweet spot' showing the ideal range for marine and reef aquariums.

Designed to give temperature-corrected readings in warm water aquariums (68º - 85º F / 20º - 30º C)

Ista specialise in planted aquarium equipment and supplies, so you can be sure that this hydrometer is one of the most advanced on the market and made to the highest possible quality.