Rank Product Name Score
1 Automatic Temperature Compensation Sea Water Salt Salinity Refractometer for Aquarium, 0% - 10% & 1.0 to 1.070 S.g. Dual Scale Hydrometer By Adeadvancedoptics Automatic Temperature Compensation Sea Water Salt Salinity Refractometer for Aquarium, 0% – 10% & 1.0 to 1.070 S.g. Dual Scale Hydrometer By Adeadvancedoptics
Ade Advanced Optics®
9.6 GET ON AMAZON
2 Salinity Refractometer for Seawater and Marine Fishkeeping Aquarium 0-100 PPT with Automatic Temperature Compensation Salinity Refractometer for Seawater and Marine Fishkeeping Aquarium 0-100 PPT with Automatic Temperature Compensation
Xin Da Cheng
9.2 GET ON AMAZON
3 Aeroway Salinity Refractometer, Aquarium & Seawater - Dual Scale (1.0 to 1.070 S.G.) Aeroway Salinity Refractometer, Aquarium & Seawater – Dual Scale (1.0 to 1.070 S.G.)
Aeroway
8.9 GET ON AMAZON
4 SMARTSMITH Salinity Refractometer for Seawater and Marine Fishkeeping Aquarium 0-100 PPT with Automatic Temperature Compensation SMARTSMITH Salinity Refractometer for Seawater and Marine Fishkeeping Aquarium 0-100 PPT with Automatic Temperature Compensation
SMARTSMITH
8.6 GET ON AMAZON
5 Rhinoco Salinity Refractometer, Saltwater Aquarium Refractometer, Dual Scales Specific Gravity Salinity Meter with 0-100 PPT and 1.000-1.070 for Seawater, Pool, Tank, Testing, Marine Fishkeeping Rhinoco Salinity Refractometer, Saltwater Aquarium Refractometer, Dual Scales Specific Gravity Salinity Meter with 0-100 PPT and 1.000-1.070 for Seawater, Pool, Tank, Testing, Marine Fishkeeping
Rhinoco
8.6 GET ON AMAZON
6 Premium Salinity Refractometer with Automatic Temperature Compensation for Saltwater, Aquarium, Marine Reef Tank Testing - Dual Scale (0-100ppt & 1.000 to 1.070 S.G.) Premium Salinity Refractometer with Automatic Temperature Compensation for Saltwater, Aquarium, Marine Reef Tank Testing – Dual Scale (0-100ppt & 1.000 to 1.070 S.G.)
ONE250
8.4 GET ON AMAZON
7 RZ Aquariums Salinity Refractometer for Seawater Marine Fish-Keeping, Dual Scales Specific Gravity Salinity Meter Hydrometer 0-100ppt & 1.000-1.070, Saltwater Tester with ATC Function RZ Aquariums Salinity Refractometer for Seawater Marine Fish-Keeping, Dual Scales Specific Gravity Salinity Meter Hydrometer 0-100ppt & 1.000-1.070, Saltwater Tester with ATC Function
RZ
8.3 GET ON AMAZON
8 AquaticHI Aquarium Refractometer w/LED for Saltwater/Brackish/Marine/Reef Tank Testing, Automatic Temperature Control, Salinity 0-100ppt & Specific Gravity 1.000-1.070 (Premium Kit w/LED) AquaticHI Aquarium Refractometer w/LED for Saltwater/Brackish/Marine/Reef Tank Testing, Automatic Temperature Control, Salinity 0-100ppt & Specific Gravity 1.000-1.070 (Premium Kit w/LED)
Center Optoelectronics Technology Company Limited
8.0 GET ON AMAZON
9 Rhino Salinity(0-100ppt & 1.000-1.070 Specific Gravity)Refractometer with Automatic Temperature Compensation for Seawater and Marine Fishkeeping Aquarium Teflon Coating Rhino Salinity(0-100ppt & 1.000-1.070 Specific Gravity)Refractometer with Automatic Temperature Compensation for Seawater and Marine Fishkeeping Aquarium Teflon Coating
RHINO TECHNOLOGY
8.0 GET ON AMAZON
10 AUTOUTLET Refractometer Saltwater Aquarium for Seawater,Pool,Tank,Testing,Marine Fishkeeping, 0-100PPT & 1.000-1.070 Salinity Tester with ATC Function Hydrometer Specific Gravity Salinity Meter Kit AUTOUTLET Refractometer Saltwater Aquarium for Seawater,Pool,Tank,Testing,Marine Fishkeeping, 0-100PPT & 1.000-1.070 Salinity Tester with ATC Function Hydrometer Specific Gravity Salinity Meter Kit
AUTOUTLET
7.6 GET ON AMAZON

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