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RHW-25ATC has been engineered to bring you the models where in a mini screw driver is no longer needed to calibrateyour refractometer.

The RHWN25/Brix ATC is a metal device that provides you with fast & accurate results.

It's dual-scale provides you the direct reading of the alcohol as well as brixmeasurements.

ThisGrape & Alcohol Refractometeris mainly designed to test the sugar content in original grape wine and alcohol-content by volume of the grape wine made from the fermented grapes and sugar concentration in the grapes.

You can measure the brix & alcohol content accurately in seconds!

Among our 3 types of refractometer-- traditional， new design and with built-in LED --only new design refractometers don't need a mini-screw driver to calibrate them.Materials used are carefully selected to bring out the best quality. With aluminum body， it provides more accurate measurements and simply stands up better over time. Each use， always clean the refractometer and make sure that no air bubbles appear. FULLY EQUIPPED with ATC， automatically adjust itself to correct temperature discrepancies during use. Refractive Index is very temperature dependent， it's important to use a refractometer with automatic temperature compensation (ATC) to give you the most accurate measurement in any type of environment temperature.

In addition， an extra cover plate and screws are included to ensure that the prism will still be safe even if the first cover plate is broken. Just attach using the screws to replace the broken one， another extra benefit when you buy ourRHWN-25/Brix ATC.