Brake Fluid Tester Pen, Automotive Brake Fluid Liquid Tester, High-Precision Brake Fluid Moisture Tester, Oil Moisture Tester Analyzer Meter and Calibrated for DOT3, DOT4, DOT5.1

[Fast and Accurate Measurements] This brake fluid tester ensures quick and precise readings with an accuracy of ± 0.3%, covering a range of 0% - 4%. Whether you're checking DOT3, DOT4, or DOT5.1 fluids, this device offers reliable results, helping you easily maintain optimal brake performance. It is extremely easy for personal use and is widely used for private workshops, repair shops and car dealerships

[Sound & Light Dual Alarm] When the brake fluid tester detects the value is between 0~2%, the backlight turns green, which means the brake oil can still be used. When the value is tested between 2~3%, the backlight is yellow, and the buzzer buzzes slowly, please change the brake oil. When the detected value is above 3%,the backlight turns red, and the buzzer buzzes quickly, please change the brake oil immediately. Tips: please wipe the probe clean, otherwise it will affect the results

[Easy to Use] With its compact design, this brake fluid tester is easy to carry and storage. It operates on 2x1.5V AAA batteries and functions well within a temperature range of 0-40°C. Its user-friendly design and quick measurement capabilities make it an essential tool for both professional mechanics and DIY enthusiasts

[Convenient Pocket Clip Design] Lightweight and compact, this brake fluid tester conveniently clips to your shirt pocket to carry with you. It fits nicely and ergonomically in your hand while working. Has an easy-to-understand interface, customers can operate the device with one hand. Out of the box you can rest assured of the Brake Fluid Tester and just enjoy 3-Year provided by Intendvision. Anything please feel free to contact us and we will try our best to help

[Durable and Corrosion-Resistant] Featuring a corrosion-resistant probe, this brake fluid tester is designed for long-lasting performance. Please wipe the probe and device clean after using, keep the device dry to avoid affecting the check result