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★Suitable for home and laboratory salinity testing applications, including drinking water, swimming pools, ponds, beer brewing, aquariums, hydroponics, laboratories, food processing, etc.

★Backlight design. Don't worry about not seeing the display value when the light is insufficient. The LCD with green backlight helps you to see the measurement results clearly under any circumstances.

★The automatic shutdown function turns off the power after 5 minutes of inactivity to save power. Adopt fully transparent liquid crystal (LCD) to display 4-digit value and corresponding physical quantity unit.

★Easy to use: Drop 2-3 drops on the saline prism, face the light, and then obtain accurate readings through the optical eyepiece, which is very suitable for replacing poor quality and difficult to read hydrometer refractometers

★The salinity refractometer with automatic temperature compensation allows you to obtain accurate readings more easily and quickly. Made of aluminum body and ABS rubber, it is light and strong.