Performance Tool W16500 Professional DEF Tester (Disc Type DEF, Diesel Exhaust Fluid tester) sold2025 5mm Audio Port)Just plug and

5mm Audio Port)Just plug and play

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California Prop 65 - Warning

keeping your advice safe from any potential damage

it can prolonged use does not rust with good conductivity

Performance Tool W16500 Professional DEF Tester (Disc Type DEF, Diesel Exhaust Fluid tester) sold2025 5mm Audio Port)Just plug andPerformance Tool W16500 Professional DEF Tester (Disc Type DEF, Diesel Exhaust Fluid tester) The Performance Tool W16500 Professional DEF Tester is a must have tool for anyone who wants to accurately test the purity levels of their DEF. Using floating discs, this tester provides highly accurate readings of the urea levels in your DEF, whether it's hot or cold. Designed for use with most diesel powered cars, light duty trucks, and semi trucks