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Aquarium Hydrometers & Refractometers


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Coralife Deep Six Hydrometer Coralife Deep Six Hydrometer

Product Code: RES00877
The Coralife Deep Six Hydrometer range is 1.000 to 1.032. The Deep Six is accurate to +/- 0.001 specific gravity.

Our Price: $9.79
You'll earn 49 points
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IceCap Salinity/Temp Digital Pocket Tester IceCap Salinity/Temp Digital Pocket Tester

Product Code: RIC68080
The IceCap Salinity/Temp Digital Pocket Tester is a portable, rugged, water resistant device that utilizes electric conductivity to determine the specific gravity/salinity of natural and artificial seawater. Within seconds, the salinity and temperature are measured and visually displayed on the easy to read backlit LCD screen.

Our Price (price includes free shipping!) $74.99
You'll earn 75 points
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IceCap Salinity/Temp Digital Pocket Tester & AccuraSea Package IceCap Salinity/Temp Digital Pocket Tester & AccuraSea Package

Product Code: RIC68080-Bundle
This package includes the IceCap Salinity/Temp Digital Pocket Tester & Two Little Fishies AccuraSea, 250 ml. You'll need the AccuraSea as a reference solution to calibrate the Salinity Tester.

Our Price (price includes free shipping!) $74.99
You'll earn 75 points
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Aquarium Systems Instant Ocean Hydrometer (TK-504) Instant Ocean Hydrometer (TK-504)

Product Code: RAS02503
The Instant Ocean Hydrometer (TK-504) delivers precise full-range salinity and specific gravity readings--accurate to 0.001.

Our Price: $9.99
You'll earn 50 points
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The MarineAndReef.com Reefractometer Refractometer is designed specifically for marine and aquarium salt water MarineAndReef.com Reefractometer (aka Refractometer)

Product Code: RMR90001
The MarineAndReef.com Reefractometer is designed specifically for marine and aquarium salt water. The readout is for 0-40 PPT, which is much easier to read than the 1-100 PPT that comes with many refractometers that are for general use. The refractometer also features ATC (automated temperature compensation) so you don't need to adjust your reading.

Our Price: $19.99
Sale Price: $16.99
You save $3.00!
You'll earn 100 points
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MarineAndReef.com Reefractometer AccuraSea Package MarineAndReef.com Reefractometer (aka Refractometer) & AccuraSea Package

Product Code: RMR90001-Bundle
With the MarineAndReef.com Reefractometer (aka Refractometer) & Two Little Fishies AccuraSea Package you can be absolutely certain your salinity is perfect.

Our Price: $31.99
Sale Price: $27.99
You save $4.00!
You'll earn 160 points
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Milwaukee Seawater Digital Salinity Aquarium Refractometer Specific Gravity Milwaukee Instruments Seawater (Salinity) Refractometer

Product Code: RMI00887
The MA887 Milwaukee Instruments Seawater (Salinity) Refractometer is an optical instrument that employs the measurement of the refractive index to determine the salinity of natural and artificial seawater, ocean water or brackish intermediates.

Our Price (price includes free shipping!) $119.99
You'll earn 600 points
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Milwaukee Instruments Seawater (Salinity) Refractometer with AccuraSea Milwaukee Instruments Seawater (Salinity) Refractometer w/ AccuraSea

Product Code: RMI00887-Bundle
This bundle includes the The MA887 Milwaukee Instruments Seawater (Salinity) Refractometer with the Two Little Fishies AccuraSea, 250 ml.

Our Price (price includes free shipping!) $129.99
You'll earn 650 points
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Two Little Fishies AccuraSea 250 ml Two Little Fishies AccuraSea, 250 ml

Product Code: RTL50700
With Two Little Fishies AccuraSea you can measure your salinity precisely. AccuraSea seawater reference solution is the only calibration solution of its kind made from real seawater. It’s pure natural sea water micron filtered and UV sterilized then adjusted with reverse osmosis water to the standard S = 35 or conductivity of 53 mS/cm at 25°C (77°F).

Our Price: $12.04
You'll earn 60 points
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