Baker Refractometer with ISO Certificate

Refractometer with ISO CertificateCan be used to verify and measure salt concentrations in aquariums, holding tanks and breeding pondsMeasures the concentration of dissolved salt in water (0 to 28% salinity)Easy to operate with simple to read scalesRequires only 2 or 3 drops of samplePrism and lens with a simple focus adjustment provides repeatable resultsAutomatic Temperature Compensation (ATC)Includes: Refractometer, Cover plate, Calibration adjustment plate, Cleaning cloth, Solution/sample applicator, Hard carrying case, ISO Certificate with full Data and Uncertainties