winterrock Brake Fluid Tester, Brake Fluid Moisture Tester with 5 LED Indicators, Auto Diagnostic Testing Tool, Brake Fluid Liquid Tester Pen for DOT3 DOT4 DOT5.1, Universal Car Accessories

winterrock Brake Fluid Tester, Brake Fluid Moisture Tester with 5 LED Indicators, Auto Diagnostic Testing Tool, Brake Fluid Liquid Tester Pen for DOT3 DOT4 DOT5.1, Universal Car Accessories

• Quick Detection: This brake fluid tester instantly reads DOT3, DOT4, and DOT5.1 brake fluid data, completing liquid health checks within seconds. It accurately alerts you when brake fluid needs replacement, ensuring optimal braking performance and safety at all times.
• Five-Color LED Indicator: This tester features a five-color coded LED light, clearly displaying moisture percentage: green indicates good, yellow signifies acceptable but requiring near-term inspection/replacement, and red prompts immediate replacement, providing precise visual alerts.
• High Quality: This brake fluid tester utilizes brass-plated metal and a matte plastic casing, offering oxidation and corrosion resistance. The slip-resistant casing provides a comfortable grip, ensuring stable, reliable, and long-lasting performance in diverse environments.
• Simple Operation: Insert the metal probe into the brake fluid reservoir. The LED indicator will illuminate within seconds to display the result—clear and intuitive, saving time and effort. After testing, the pen automatically shuts off after 12 seconds to conserve battery power.
• Package Includes: 1× Brake Fluid Tester; Enables quick fluid quality assessment; Remove batteries and clean tester promptly after testing to prevent corrosion and conserve battery life. Batteries are not included! If you have any questions about this product, please contact us promptly. We will respond within 24 hours.