Updated: 24 Feb 2025

brake fluid tester tools

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Updated: 24 Feb 2025

#1

Best Choice
OTC Tools 4598-DOT3 DOT 3 Brake Fluid Tester

9.9

OTC

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Main highlights

It determines the quality of brake fluid and measures moisture from 0%-4%

Features LED lights to show moisture percentage

Brake fluid tester for DOT 3
#2

Value for Money
OEMTOOLS 25269 Brake Fluid Tester DOT 3, DOT4 Brake Fluid, DOT 5.1, Brake Tech Tools, Tests Formulas of Brake Fluid for Excess Moisture, Fluid Test Pen

9.6

OEMTOOLS

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Main highlights

PROTECTS YOU AND YOUR CAR: To prevent brake failure, it’s essential to have this brake fluid test kit; Brake fluid pen is easy to carry and takes up little space

EASY USE: With an easy push of a button, this brake fluid tester pen turns on and has a built-in self test; Switch button allows for you to easily cycle through fluid test types

ALL THE FLUIDS: Precisely check the water content of all 8 types of polyglycol-based brake fluids: brake fluid DOT 3, brake fluid DOT 4, DOT 5. 1, ACDelco DOT 3, Pennzoil, Prestone, Motorcraft, and Toyota DOT 3 with the brake fluid liquid tester
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#3
ITEQ Brake Fluid Liquid Tester Pen with 5 LED Indicators, Calibrated For DOT3 DOT4 Brake Fluid

9.4

ITEQ

-18%

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Why we love it

Quickly checks brake fluid quality to prevent accidents.

Easy-to-read LED indicators show water percentage clearly.

Simple and fast results in seconds, very user-friendly.

Main highlights

The LED indicators will show percentage of water in the brake fluid with 3 colors green yellow and red

Test the car brake fluid quality quickly to check whether it’s qualified, which can remind you to change the brake fluid when necessary to avoid traffic accident

Calibrated for cars using DOT4 and DOT3 brake fluids (But DOT3 is almost replaced by DOT4 because DOT4 has better performance)

-18%
#4
KAIWEETS Brake Fluid Tester Pen with Corrosion Resistance Probe, High-Precision Brake Fluid Moisture Tester with Data Hold Function, Buzzer Alarm, 3 Colors Backlight, Calibrated for DOT3, DOT4, DOT5.1

9.3

KAIWEETS

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Why we love it

Durable and corrosion-resistant design.

Quick and precise measurements.

User-friendly with convenient alerts.

Main highlights

Corrosion Resistant and Accurate
Features a corrosion-resistant probe with 0.3 accuracy for reliable brake fluid testing.

Ideal for Mechanics and DIYers
Compact, easy-to-use tester suited for both professionals and hobbyists.

Praised for Convenient Alerts
Three-color backlight and buzzer alarm enhance safety and usability.
#5
Aicevoos NF Brake Fluid Tester Pen Brake Fluid Test Strips, Calibrated for DOT3 DOT4 DOT-5.1 Brake Fluid

9.2

Aicevoos

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Main highlights

WIDE RANGE OF APPLICATIONS: The automotive brake fluid tester is a universal device for most vehicles. It can check the condition of DOT-3, DOT-4, DOT-5.1 brake fluids as well as most synthetic brake fluids. It is extremely easy for personal use and is widely used for private workshops, repair shops and car dealerships.

EASY TO USE: The test procedure is fast and efficient and has a simple control panel. The backlight lights green at 0%-2% data (brake fluid is ready to use). At 2%-3%, the backlight turns yellow and the buzzer sounds slowly (brake fluid needs to be changed). The backlight is red and the buzzer sounds quickly when the data is greater than 3% (brake fluid needs to be changed immediately).

EASY READING: high-sensitivity probe + audible alarm, instant display of results, large screen with three-color backlight, easy to read the measurement results whether day or night.
#6
Performance Tool W181 Brake Fluid Moisture Tester - 5 LED Readout, Calibrated for DOT 4, Portable with AAA Battery Included, Not for use on DOT 5

9.0

Performance Tool

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Main highlights

BATTERY INCLUDED FOR IMMEDIATE USE: The W181 Brake Fluid Tester comes with a 1-AAA battery, allowing you to use it right out of the box.

ACCURATE MOISTURE LEVEL DETERMINATION: The Performance Tool W181 Brake Fluid Tester accurately determines the moisture level in brake fluid to ensure optimal vehicle safety.

5 LED READOUT FOR EASY INTERPRETATION: The 5 LED readout on the brake fluid tester indicates the percentage of moisture in the fluid, making it easy for you to interpret the results.
#7
Brake Fluid Tester, High Precision Car Brake Fluid Detector, Hydraulic Fluid/Liquid/Oil Moisture Analyzer with LCD Screen Audible Alarm DOT3 DOT4 DOT5.1 Tester,Automotive Replacement Level Sensors

8.8

KINGBOLEN

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Main highlights

[Scope of Application] --- Automotive Brake Fluid Detector is common fit for most vehicle. Check the health status of DOT-3, DOT-4, DOT-5.1 brake fluid and also most synthetic brake fluids. It's extremly convenient for personal use and broadly applied in individual workshops, repair factories and dealer workshops.

[Precision test and universal probe] --- Highly sensitive and precise probe, can quickly and accurately detect DOT-3, DOT-4, DOT-5.1 brake fluid and has received the result in seconds. The gooseneck probe provides flexibility in detection, making the detection process more elastic and efficient. Probe top with flash light, you can observe the colour of the brake fluid if needed.

[Easy Instant Read and Alarm] --- High sensitive probe + high resolution screen + audible alarm, instant display result, large display with backlight, easy and clear reading in sun or night. NEVER LIMITED BY THE ENVIRONMENTS. As soon as brake fluid sounds too much water alarm, it will remind you that you need to change the brake fluid.
#8
Performance Tool W183 2-1 Brake Fluid and Tire Pressure Tester - Accurately Measure Your Vehicle's Brake Fluid and Tire Pressure Levels with Ease

8.6

Performance Tool

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Main highlights

TWO-IN-ONE TOOL: This innovative tool combines an automotive brake fluid tester and tire gauge, making it a must-have for any car owner.

EASY-TO-READ DISPLAY: The digital tire pressure is displayed on a backlit LCD screen, making it easy to check your tire pressure in any lighting condition.

ACCURATE BRAKE FLUID TESTING: The tool accurately tests DOT 3, DOT 4, and DOT 5.1 brake fluid, providing the percentage of water in the braking system to ensure your brakes are in top condition.
#9
Performance Tool W182 Universal Brake Fluid Tester - Quickly Test Brake Fluid Quality and Safety for Your Vehicle's Performance

8.3

Performance Tool

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Main highlights

VERSATILE COMPATIBILITY: This brake fluid tester is suitable for use with DOT 3, DOT 4, and DOT 5.1 brake fluids, making it a versatile tool for any mechanic or car owner.

USER-FRIENDLY DESIGN: With 5 LED indicator lights, this brake fluid tester is easy to use and understand, even for those with limited automotive knowledge.

QUICK AND ACCURATE TESTING: The Performance Tool W182 Universal Brake Fluid Tester helps you examine brake fluid quality in seconds by indicating the percentage of water in the fluid.
#10
OEMTOOLS 25267 Brake Fluid Tester

8.1

OEMTOOLS

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Main highlights

Multi-Colored LED Panel for Easy Recognition

Automatic Shut-Off

1 AAA Battery Included

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brake fluid tester tools

OTC Tools 4598-DOT3 DOT 3 Brake Fluid Tester

9.9

Main highlights

OEMTOOLS 25269 Brake Fluid Tester DOT 3, DOT4 Brake Fluid, DOT 5.1, Brake Tech Tools, Tests Formulas of Brake Fluid for Excess Moisture, Fluid Test Pen

9.6

Main highlights

ITEQ Brake Fluid Liquid Tester Pen with 5 LED Indicators, Calibrated For DOT3 DOT4 Brake Fluid

9.4

Why we love it

Main highlights

KAIWEETS Brake Fluid Tester Pen with Corrosion Resistance Probe, High-Precision Brake Fluid Moisture Tester with Data Hold Function, Buzzer Alarm, 3 Colors Backlight, Calibrated for DOT3, DOT4, DOT5.1

9.3

Why we love it

Main highlights

Aicevoos NF Brake Fluid Tester Pen Brake Fluid Test Strips, Calibrated for DOT3 DOT4 DOT-5.1 Brake Fluid

9.2

Main highlights

Performance Tool W181 Brake Fluid Moisture Tester - 5 LED Readout, Calibrated for DOT 4, Portable with AAA Battery Included, Not for use on DOT 5

9.0

Main highlights

Brake Fluid Tester, High Precision Car Brake Fluid Detector, Hydraulic Fluid/Liquid/Oil Moisture Analyzer with LCD Screen Audible Alarm DOT3 DOT4 DOT5.1 Tester,Automotive Replacement Level Sensors

8.8

Main highlights

Performance Tool W183 2-1 Brake Fluid and Tire Pressure Tester - Accurately Measure Your Vehicle's Brake Fluid and Tire Pressure Levels with Ease

8.6

Main highlights

Performance Tool W182 Universal Brake Fluid Tester - Quickly Test Brake Fluid Quality and Safety for Your Vehicle's Performance

8.3

Main highlights

OEMTOOLS 25267 Brake Fluid Tester

8.1

Main highlights

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