Quick Brake Fluid Tester

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Sale price$59.99 Regular price$79.99


Instant & Accurate Readings!

This product is perfect if you need to test your brake fluid! It is a simple one button operation that makes it amazing! - John Gleason

Why Buy Our Quick Brake Fluid Tester?

✅TESTER: Make brake fluid testing quick & easy with our Quick Brake Fluid Tester! Simply insert the sensor on your car’s brake fluid & you’ll be able to tell instantly how much moisture content it has from 0 to 4% and above. This is reusable unlike test straps which you’ll have to buy again & again.

✅VERSATILE: This works for DOT 3, DOT 4 & DOT 5.1 & can be used for all cars. This makes it easy as a one stop shop for your brake fluid testing needs. You won’t need to worry about having to buy different testers for different DOT oils.

✅DESIGN: It has nickel plated metal probe, which is oil-proof and oxidation-proof, with good condition and high precision. This makes it high quality & has a long lasting build quality. Comes with 3 LED lights, green, yellow & red which indicate how much water content is in your brake fluid.

❗ Reminder ❗

  • This does not come with the batteries (2x AAA batteries)

📋Frequently Asked Questions:

Q: Does this tester work with dot 3 synthetic fluid?

A: Yes, our brake fluid tester supports DOT3/DOT4/DOT5.

Q: How deep should you insert it? I put it just barely in and it beeps and switches between 3-4%, but if I put the probe in deeper, it's only 2%

A: The probe must be inserted deep enough for the sensor to calculate the humuidity in brake oil. Refer to the instruction manual for exact operation.


  • Material: Nickel-Plated Metal Probe
  • Color: Black
  • DOT Support: 3, 4 & 5.1
  • Water Content Test Range: 0 to 4%
  • Item Weight: 5 oz
  • Product Dimensions: 4.46 x 1.22 x 10.48 inches

Package Inclusions: 

  • 1x Quick Brake Fluid Tester
  • 1x Instructions