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Salinity Refractometer for Seawater and Marine

Measure salt water or salinity of water, ideal for aquariums and marine monitoring.
Measures on 2 scales, Specific Gravity (D 20/20) and parts per thousand.
Features automatic temperature compensation.
Comes with hard case, dropper, screwdriver, user manual and cleaning cloth.
The main part is made of chromium, it’s very durable.