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Automotive Brake Fluid Tester Pen

Original price $7.99 - Original price $7.99
Original price
$7.99 - $7.99
Current price $7.99
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Delivery Time

With a target delivery time of 1-3 days, our nationwide shipping service ensures that all in-stock items are dispatched within 24 hours.

Automotive Brake Fluid Tester Pen

Five LED indicators show the test results more accurate.
Testing for DOT 3, DOT4, DOT5 brake fluid
Press the switch to turn on the power, the green LED light that represents the battery properly, the green light does not shine on behalf to replace the battery
Automatic shutdown

  • Check the car brake oil quality
  • 5 LED lights display the percentage of moisture content in brake fluid
  • Auto power off
  • 1 pc for LR03 for AAA batteries (not included)
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, high moisture content will lead to lower boiling point, affect braking performance. Red indicates the brake fluid needs immediate replacement, green represents good condition, yellow indicates the state is acceptable but soon replaced.

  • The green LED lights = water content in the brake fluid for H2O <1.5%, brake fluid qualified
  • The yellow LED lights = brake fluid water content for H2O = 1.5% to 3%, can continue to use, test again six months later
  • The red LED lights = water content in the brake fluid for H2O> 3%, can not continue to use the brake fluid needs to be replaced. 
  • Red LED: change brake fluid
  • LED red flashing: battery replacement
  • LED yellow: low moisture content, check again in six months
  • LED green: brake fluid lines / cell row

Technical parameters:

Green: Battery OK, Brake fluid does not contain water

Green / yellow: Water in brake fluid content of less than 1%, better brake fluid performance, ease of use.

Green / yellow / yellow: Brake fluid water content  2%, brake fluid can continue to use.
Green / yellow / yellow / red: Brake fluid water content of about 3%, the proposed replacement of brake fluid.

Green / yellow / yellow / red / red: Brake fluid water content of at least 4%, the brake fluid must be replaced immediately dangerous.

Packing list:

  • 1PC brake fluid tester 


Customer Reviews

Based on 1 review

Easy to use and handy guide on the tool for when action is needed.

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