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Dymax glass hydrometer in pack

The Dymax Glass Hydrometer is a floating glass hydrometer with a built-in thermometer for measuring the specific gravity (salinity) of marine aquarium water.

Key Features

  • Measures specific gravity and temperature in one
  • Clear glass with an easy-read colour scale
  • For marine and brackish aquariums

Good To Know

  • Float it in a still sample, free of bubbles, and read at eye level.
  • Most reef tanks are kept at a specific gravity around 1.024–1.026.
  • Take salinity readings at the same water temperature each time; readings shift as water warms or cools.
  • Top up evaporation with fresh RO water, not salt water — salt doesn't evaporate.
  • It is glass — handle carefully.

Dymax 2-in-1 glass hydrometer & thermometer

Floating Glass Hydrometer I Specific Gravity & Temperature I Colour Scale I Marine Tanks

AED 13.00

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The Dymax Glass Hydrometer is a floating glass hydrometer with a built-in thermometer for measuring the specific gravity (salinity) of marine aquarium water.

Key Features

  • Measures specific gravity and temperature in one
  • Clear glass with an easy-read colour scale
  • For marine and brackish aquariums

Good To Know

  • Float it in a still sample, free of bubbles, and read at eye level.
  • Most reef tanks are kept at a specific gravity around 1.024–1.026.
  • Take salinity readings at the same water temperature each time; readings shift as water warms or cools.
  • Top up evaporation with fresh RO water, not salt water — salt doesn't evaporate.
  • It is glass — handle carefully.