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Ade Advanced Optics aaosal Professional Automatic Temperature Compensation Sea Water Salinity Refractometer for Aquarium…

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$19.97
Make sure this fits by entering your model number. Local stock for fast shipment Resale quality - 50 percent heavier than the soft case cheap units
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Ade Advanced Optics Dual Scale 1.0 to 1.070 S.G. Salinity Refractometer for Aquarium & Seawater

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$25.56
One scale checks the NaCl levels with the range of 0-100 ppt (with 1 ppt scale divisions) and the other scale gauges Specific Gravity with a range of 1.000 to 1.070(+/-0.001 accuracy) Features ATC (Automatic Temperature Compensation) for accurate readings. Sturdy design, compact in size and light in weight, convenient to keep up and carry around.
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Automatic Temperature Compensation Sea Water Salt Salinity Refractometer for Aquarium, 0% – 10% & 1.0 to 1.070 S.g. Dual…

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$49.99
Make sure this fits by entering your model number. Quick Results (Faster Than Your Homebrew Hydrometer) Easy and simple to use. More Accurate Than Your Homebrew Hydrometer
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NEW RHS-10ATC 0-10% Salinity Refractometer Salt Water Aquarium

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$20.00
Make sure this fits by entering your model number. Measure salt water or salinity of water, ideal for aquariums and marine monitoring. Measures on 2 scales, Saliunity Specific Gravity (D 20/20) and parts per thousand
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