• FAST AND ACCURATE: The EZRED DEF hydrometer has one gauge, for quick, accurate and easy to read level readings every time.
• EASY TO USE: The Diesel Exhaust Fluid tester uses a proprietary method to provide the most accurate results in an extremely easy to read way.
• BUILT TO LAST: This DEF fluid tester is made of strong SAN plastic, rubber, neoprene, and polypropylene which makes it resistant to dirt, grim, and grease
• MADE IN THE USA: This DEF fluid tester is made by the most trusted manufacturer of hydrometers in the world, EZRED, located in Deposit, New York.