The Performance Tool DEF Fluid Tester is an essential tool for any professional or DIY mechanic looking to ensure the quality of Diesel Exhaust Fluid (DEF). This easy-to-use tester provides accurate readings to help prevent damage to your diesel engine's emissions system.

With its durable design and user-friendly operation, this tool helps maintain optimal performance in vehicles equipped with SCR (Selective Catalytic Reduction) systems.

• Accurate measurement of DEF quality
• Compatible with most DEF systems
• Durable construction for longevity
• Easy-to-read display for quick readings
• Essential for preventing engine damage