Features
Seawater: keeping your hands clean and can prevent pollution of water from the fish pond,saltwater refractometer
Specific gravity hydrometer: the proportion of water sample can be automatically detected, the proportion, and conductivity of sea water are shown once,hydrometer
Aquatic refractometer: suitable for saltwater, swimming pool, aquaculture, aquarium (seawater) and pond, food processing and products industry,meter tester
Electronic salinometer: the pen type meter is a precision instrument for testing the value of a solution,food hydrometer
Refractometer saltwater tank: it is easy to read with high precision,electronic hydrometer
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Aquarium Hydrometers - Seawater Salinity Refractometer,V-Resourcing Automatic Temperature Compensation Sea Water Salinity Measurer for Aquarium, Hydrometer, 0-100ppt & 1.000-1.070 Salinity Specific Gravity
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Aquarium Hydrometers - Wisecoco Salinity Refractometer, Double Scale 0‑100 PPT 1.000‑1.070 Portable ATC Salinity Meter, for Aquarium Marine Monitoring Agriculture Fish Farming
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