This pen-shaped brake fluid tester can easily help determine whether it's time for you to change your brake fluid.
Staying safe and knowing that your car is in top condition is most important. Ideally, brake fluid should be checked regularly and changed every one to two years.
Brake fluid detection pen is based on the change in conductivity to determine the moisture change brake fluid. It shows clearly the extent of moisture contained by the light-emitting diode.
The high moisture content will lead to a lower boiling point, affect braking performance.
To Check Fluid Quality -
Press the button for power on, green LED will light up. Insert the tester into the reservoir for a second, then the results will be indicated correctly by LEDs.
Auto power off.
Green: Battery OK, i.e.: No Water Contained in the Brake Fluid
Yellow:Less than 1% of Water Content in Brake Fluid
Yellow/Yellow:Approximately 2% of Water Content in Brake Fluid
Yellow/Yellow/Red:Approximately 3% of Water Content in Brake Fluid;
The Brake Fluid Should be changed
Yellow/Yellow/Red/Red: at least 4% of Water Content in Brake Fluid;
The Brake Fluid Must be Changed Urgently, Extreme Danger
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