New New Brake Fluid Liquid Tester Pen With 5 LED Car Auto Vehicle Tool Diagnostic Tool Mini Brake Fluid

- According to the variation of electrical conductivity to determine the moisture content of the brake oil change. - High moisture will lead to the boiling point is reduced, affect the braking performance

- Meanings of indicator light: - Green: Battery OK, i.e.: No Water Contained in the Brake Fluid - Green / Yellow: Less than 1% of Water Content in Brake Fluid - Green / Yellow / Yellow: Approximately 2% of Water Content in Brake Fluid - Green / Yellow / Yellow / Red: Approximately 3% of Water Content in Brake Fluid;The Brake Fluid Should be Changed - Green / Yellow / Yellow / Red / Red: at least 4% of Water Content in Brake Fluid; The Brake Fluid Must be Changed Urgently, Extreme Danger .

Note: Remember to dry this tester before using in brake fluid.

Package Includes:1 * Brake Fluid Test Pen(without battery )