Brake Fluid Liquid Tester Pen, DOT 3 DOT 4 DOT 5.1 Brake Fluid Diagnostic Testing Pen, Vehicle High-Precision Hydraulic Liquid Oil Moisture Analyzer with 5 LED Indicators

Enhancing Safety: Brake fluid may lose its braking performance and affect driving safety after absorbing water. This tester helps you regularly check brake fluid condition and replace old fluid in time, maintaining the stability of the brake system and minimizing the potential safety hazards Accurate Measurement: Equipped with a high-precision probe, this tester quickly detects water levels in brake fluid and displays results clearly via a five-level LED indicator. The different colors of lights represent varying water percentages, allowing users to easily interpret the data Premium Material: The brake fluid tester pen is made of high-quality brass-plated metal probes to ensure high conductivity and durability. Its sturdy plastic casing is corrosion-resistant and wear-resistant, ensuring long-lasting performance in various conditions Easy to Use: Press the power button, and the green LED light will turn on. After a brief moment, insert the probe into the brake fluid, and the LED lights will illuminate based on the detected water level. Once the test is complete, the device automatically shuts off within 12 seconds Broad Application: Compatible with DOT3, DOT4, and DOT5.1 brake fluids, this tester is suitable for most cars, motorcycles, trucks, and more. Whether for home vehicle maintenance or professional repair work, it offers broad applicability to meet various testing needs