🚗 Drive with Confidence: Your Brake Fluid's Best Friend! Comes with a battery included for immediate use. Know your vehicle's performance is top-notch with quick tests. Simple operation ensures you can check fluid safety in seconds. Easily test brake fluid quality with 5 LED indicators. Approved for major brands like AC Delco, Pennzoil, and Toyota. DOT 3 approved 5 LED indicators Battery included The PERFORMANCE TOOL W182 Universal Brake Fluid Tester is a must-have for any vehicle owner, allowing for quick and easy testing of brake fluid quality. With 5 LED indicator lights and compatibility with major DOT 3 brands, this tester ensures your vehicle's performance and safety are always in check. Plus, it comes with a battery included, making it ready to use right out of the box.