ITEM NAME:Aquarium Glass float Hydrometer Thermometer Salt Marine Aquarium Tank Store Categories Store Categories Other 1PC Aquarium Glass Hydrometer with Thermometer Salt Marine Salinity Tester Meter Product Description Measure both Temperature and Specific Gravity of the water Green indicators are ideal range of water temperature and specific gravity for most salt water / marine aquariums Instruction:Place the hydrometer into water, and let it flow freely in the water If water level below the green indicator means more fresh water is required If water level above the green indicator means more salt water is required Product Description Material:Glass For Salt Water / Marine Aquariums Easy to use Size:20cm/7.87"" Quantity: 1 Pc Package includes: 1 Pc x Aquarium Glass Float Hydrometer With Thermometer Salt Marine".Green indicators are ideal range of water temperature and specific gravity for most salt water / marine aquariums. For Salt Water / Marine Aquariums. I send goods within 12 hours.
