Salinity Refractometer for Seawater and Marine Fishkeeping Aquarium 0-100 PPT with Automatic Temperature Compensation

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About This 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 aut omatic temperature compensation. Comes with hard case, dropper, screwdriver, user manual and cleaning cloth. The main part is made of chromium, it's very durable. Show more