Pocket Car Brake Fluid Tester

  • Sale
  • $22.80
  • Regular price $45.75

This pen-shaped brake fluid tester can easily help determine whether it's time for you to change your brake fluid. It could save your life!

This handy, compact diagnostic tool makes it quick and easy to check the moisture content in your car's brake fluid. The built-in LED lights indicate whether fluid is good, OK or bad with its LED indicators.

Keep this device around your car at all times to avoid danger and keep yourself safe at all times!



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.

The Pocket Car Brake Fluid Tester is the perfect addition to your garage.

 To Check Fluid Quality -

Press the button for power on, green LED will light up. Insert the tester into the fluid for a second, then the results will be indicated correctly by LEDs (See indications below).

Auto power off.

Operated by a LR03 AAA 1.5V battery (Not included).


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


Please allow 10-24 business days for the item to arrive.

Please note: due to the ongoing global COVID-19 pandemic, some minor delays in product delivery are possible, we are doing our absolute best to make sure you get your products as soon as possible.