For Brake Fluid Tester Car Oil Pen Liquid 5 Led Indicator Testing Tool Dot3/4/5

Customized models --- Car Brake oil Tester Pen can be used by 4S auto stores and car owners. The of the product is simple, accurate and quick! Applicable to a variety of models, easy to use. Indicator situation --- Red light indicates that the brake oil needs to be replaced immediately, green light indicates good condition, and yellow light indicates that the condition is acceptable, but it is about to be replaced. Features --- Brake Fluid Tester measures the change in the water content of the brake fluid as a function of the change in electrical conductivity. The identification pen clearly shows the moisture content via the LED. Excessive water content reduces the boiling point and affects braking performance. High quality material --- Mini Automobile Diagnostic Brake Oil Detection Pen is made of high quality plastic materials, show casing the characteristics of stable performance and durability, has undergone fine treatment to ensure performance and longer service life. Easy to carry ---- Auto Diagnostic Brakes Testing Pen is light and portable, easy to carry and use. The moisture content of the brake fluid changes according to the change in conductivity. The five LED indicates that it indicates the percentage of moisture in the brake fluid and provides more accurate test results.