V·RESOURCING Seawater Salinity Refractometer, Automatic Temperature Compensation Sea Water Salinity Measurer for Aquarium,Hydrometer,0-100ppt & 1.000-1.070 Salinity Specific Gravity

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Automatic Temperature Compensation: 10℃~30℃
Measuring range: salinity: 0-100 ‰, Specific Gravity : 1.000 to 1.070
Minimum scale: salinity: 1 ‰, Specific Gravity : 0.001

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