Ensure your diesel engine runs efficiently with the OTC DEF Refractometer, designed for precise testing of Diesel Exhaust Fluid (DEF) concentration levels. Accurate Measurement: Features a scale range of 15 to 40 percent, allowing you to monitor DEF quality effectively. Complete Kit: Comes with everything you need, including a refractometer, dropper, lens wipe cloth, and a detailed instruction guide. Convenient Storage: The included case keeps all components organized and protected for easy transport. User-Friendly: Simple to use with a quick guide, making it accessible for both professionals and DIY enthusiasts. This OTC Tools refractometer is sold as a complete kit, ensuring you have everything necessary for accurate DEF testing. Take control of your vehicle's emissions with this reliable tool.
