Introduction: The digital display salinity meter is a digital display high-precision optical instrument designed using the principle of refraction. It is small and beautiful, easy to use, and has a large LCD digital display. As long as a drop of sample solution is placed on the prism, the measured value will be displayed within 3 seconds, which can avoid subjectively erroneous numerical interpretation. Professionally used in various pickles, kimchi, pickled vegetables, salted food, marine biological feeding, aquarium, physiological saline preparation and other fields. Features: 1.Automatic temperature compensation function. 2.Battery-powered, low power consumption, no operation automatic shutdown function within 2 minutes. 3.Refractive index/salinity conversion. 4.No moving parts, high sensitivity and wide dynamic linear range. 5.The amount of samples and reagents is small, and the analysis speed is fast. Specifications: Measuring range:0.0-28.0% Index value:0.1%/0.1 Accuracy:0.2%/1 Use environment:10-40 Sample size:0.2ml(3-5) drop measure time:3S power:2 AAA alkaline batteries(not included) Battery Life:2000 times Package included: 1 kit of Digital Salinity Tester