An easy to and extremely accurate that also has a decent thermometer built in. A clear view green segment aids determination of the correct values. The hydrometer is weighted to make sure it always floats at the correct angle for testing.
◾ Combines thermometer and hydrometer
◾ Superior accuracy
◾ Easy to read
◾ Fully warranted
Aqua One Hydrometer
A simple hydrometer is still the best, easiest way to measure the salt content of a marine aquarium. The Aqua One hydrometer also features a built in thermometer, allowing two essential water quality parameters to be tested at the same time. Ideal test zones are indicated for both temperature and specific gravity.
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