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The Reichert Digital Multi-Chek Automatic Digital Refractometer is the perfect tool for determining coolant freezing points, battery charge level, and windshield washer fluid concentration in a single device. Its durable design ensures long-lasting use, with over 10,000 measurements possible on two AAA batteries included. With a wide range of applications, from automotive to industrial, this refractometer provides accurate results and ease of operation for users. Test your coolant types - ethylene or propylene glycol as well as check battery charges and windshield fluid levels, all in one easy-to-use instrument. Boasting automatic temperature compensation for reliable readings and a 0.3 degree accuracy for precision results, this refractometer delivers the features you need to stay on top of your tasks and maintain your equipment effectively. Save time, money, and effort with Reichert's Digital Multi-Chek Automatic Digital Refractometer the ideal companion for anyone looking to keep their vehicle or equipment running smoothly.