Accurate Oil Quality Diagnostic Tools Black LED Indicator Liquid Testing Pen Universal

Label:Yes Size:15.5*2cm(6.10*0.79in) Material: Plastic Brand new and high quality. Main function: Check the car brake oil quality Type: Brake Fluid Tester

Package Included: 1 * Brake Fluid Tester(Not Battery Included)

Features: Quick and easy way to test for moisture content in the brake fluid; results appear in seconds; Sturdy design: the tester has been greatly improved. Widely use: Testing dot3, dot4, dot5 brake fluid.

Explanation of the meaning of indicator lights: Green: Battery OK, meaning there is no water in the brake fluid Green/Yellow: The water content in the brake fluid is less than 1%, indicating good performance and reliable use Green/Yellow/Yellow: The brake fluid contains about 2% water and can continue to be used Green/Yellow/Yellow/Red: The water content in brake fluid is about 3%. It is recommended to replace the brake fluid Green/Yellow/Yellow/Red/Red: The brake fluid contains at least 4% water and needs to be replaced immediately Reminder: After each test, use a dry cloth or paper to wipe the liquid part of the test point clean

How to use: Step 1. Turn on the brake fluid tester by pressing the button. A green light should light up. If the light does not come on, it may be time to change a battery. Step 2. Unscrew the lid for the brake fluid reservoir, and take off the cap for the brake fluid tester. Step 3. Dip the test probes into the brake fluid and the LED lights will indicate the percentage of water in the brake fluid. Step 4. After testing, remember to screw the lid of the brake fluid reservoir back on tightly. Step 5. The tester will automatically power off after 12 seconds of inactivity.