Fast and Accurate Measurement: This brake fluid tester has an accuracy of up to ±0.3% and a detection range of 0% - 4%. It can detect DOT3, DOT4, and DOT5.1 fluids. FT01 Brake Fluid Liquid Tester is an ideal tool for professional maintenance personnel, DIY enthusiasts, car owners, or brake fluid quality testersThree-color Backlight + Buzzer Reminder: bright green backlight indicates that the brake fluid is usable; bright yellow backlight, slow buzzer, please replace the brake fluid; bright red backlight, fast buzzer, please replace the brake fluid immediatelyHigh-precision Metal Probe: This brake fluid tester pen is equipped with a high-precision metal probe and an 8.5-inch corrosion-resistant metal hose. The probe can be operated flexibly in a small space, and the rigid support provides stable and easy cleaningMulti-function: This automotive brake fluid testing tool has a flashlight, can measure in a dark environment, automatically shuts down, has data hold, and low battery prompts. Whether it is daily vehicle maintenance at home, repair and maintenance at a car shop, or a vehicle breakdown and a need to troubleshoot brake problems, this brake oil detector is a reliable vehicle detection toolWhat will you get: POROMETISTO FT01 brake fluid detector, 2*1.5V batteries, instruction manual, box
