Billy's Best Buy Vee Gee Scientific SX-2 Handheld Refractometer, with Sodium Chloride Scale, 0-28%, +/-0.2% Accuracy, 0.2% Resolution Item Description Handheld pocket refractometer for measurement of sodium chloride with a scale of 0 to 28% Manual temperature compensation and calibrated with a liquid standard using a tool-free calibration ring Ambient light illuminates the scale; no additional power source is required Durable metal and rubber outer shell with a telescope-shaped, streamlined design (40 x 40 x 165mm), a rubber grip to guard against hand heat for accurate measurements, and a non-roll stand to protect against damage Optical glass prism mounted in all-metal housing for quick temperature equilibrium between sample and prism Features The VEE GEE SX-2 is a handheld, portable, water-resistant salinity refractometer with a sodium chloride scale that measures in the 0 to 28% range, is powered by ambient light, has manual temperature compensation, an optical glass prism, and a durable metal body with rubber grip. A salinity refractometer measures the concentration of salt in liquids, such as sodium chloride, magnesium, and calcium sulfates, and displays the results. Handheld refractometers, also known as sugar meters, concentration meters, or Brix meters, are commonly used in the culinary, food and beverage, pharmaceutical, educational, geological, chemical, and ecological industries, and for water-testing applications. This refractometer is housed in a durable metal body for use with salty samples. The VEE GEE SX-2 features manual temperature compensation with an ambient temperature of 10 to 30 degrees C. The unit is factory-calibrated and can be calibrated with a liquid standard. Calibration can be controlled and adjusted with a tool-free calibration ring and a set screw. The outer shell is rubber coated with dimpled grip for easy gripping and the rubber coating guards against hand heat for accurate measurements. A non-roll stand prevents the unit from rolling when placed on a flat surface such as a table or bench top. The optical glass prism is mounted in an all-metal housing composed of copper alloy with a nickel-chrome coating for quick temperature equilibrium between the sample and the prism. The analog Brix scale features a bright, high-contrast display for clear visibility of the boundary and memory lines intersection. Instantaneous sample readings illuminated by ambient light are viewed through a monocular, focusable, cushioned eyepiece. The unit comes with a zippered vinyl carrying case, a plastic transfer pipet and an instruction manual. Specifications Measurement scale range Sodium chloride 0 to 28% Accuracy + or - 0.2% Resolution 0.2% Ambient temperature for unit operation 10 to 30 degrees C Sample volume > 0.1ml Measurement time Instantaneous Body type Copper alloy with a nickel-chrome coating Illumination Ambient light; unit requires no additional power source Dimensions 40 x 40 x 165mm (H x W x D) Weight 240g Warranty One year H is height, the vertical distance from the lowest to highest point; W is width, the horizontal distance from left to right; D is depth, the horizontal distance from front to back. Refractometers are used to determine substance content in a sample, to provide unit readings of substances including Brix, salinity, and alcohol; to detect chemical impurities, or to measure components of samples such as industrial fluid. Refractometers measure the refractive index of a substance, which is its optical characteristic, and the number of dissolved particles in it. The refractive index is the ratio of the speed of light in empty space to the speed of light in a substance; when light passes from one medium to another. Generally, a low concentration sample has a larger angle of refraction than a high concentration sample. For example, a straw placed in a high-concentration substance appears more bent than when placed in a low-concentration substance. Refractometers can work with natural light, or with an external power source such as batteries or electricity. They typically have either a digital or analog reading display, though some units utilize both types. Some analog-display refractometers can be used for both solids and liquids. Digital-display refractometers are used exclusively for liquids. Types of refractometers include handheld, benchtop, and in-process. Handheld refractometers are elongated and telescope-shaped, or shorter and rectangular. Analog handheld refractometer readings are obtained by looking through the monocular eyepiece and viewing where the boundary line intersects with the memory line. Digital handheld models provide a digital readout. Benchtop refractometers typically measure with a higher degree of accuracy than handheld units. In-process refractometers are used for continuous process monitoring and data readouts, and are generally fitted into a piping system for ongoing analysis. Refractometers are used in a wide variety of applications in the culinary, food and beverage, pharmaceutical, educational, geological, chemical, ecological, and automotive industries, and for water-testing applications. VEE GEE Scientific manufactures laboratory equipment and supplies, and makes the VanGuard brand of products. The company, founded in 1981 and headquartered in Kirkland, WA, offers scientific equipment for educational, research, clinical, and industrial applications. What?s in the Box? SX-2 refractometer Vinyl carrying case Plastic transfer pipet Instructions Specifications Manufacturer: Vee Gee Scientific Shipping Weight: 40 Product Dimensions: Width: 3.00 Length: 7.90 Height: 2.20 Shipping We offer free shipping on all orders. Our stock is shipped from our US-based warehouses and most items will be processed within 24hrs after payment. All orders are shipped with UPS or USPS, depending on the product and your location. Returns In the event that you would like to return your purchase, we offer a 30-day return policy. Products will be refunded. Returned items must be packaged in their retail packaging with original accessories and in perfect condition. All returns must be received within 30 days of purchase, upon receipt we need a maximum of 7 working days to process your return. Return shipping fees are not refundable. In the unlikely event of a defective product, only defects covered by the warranty are seen as valid reason for return. 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