Car Brake Fluid Tester Dot5s of 2025
Best Choice1
PowerbuiltPowerbuilt Universal Brake Fluid Tester Pen with LED Indicator for Water Content, Calibrated for DOT3, DOT4, DOT5.1 Liquid Brake Fluid, Fast, Easy, Accurate, Compact, Includes Battery, 647766
Main highlights- Guaranteed: Buy with Confidence, Backed by a Factory Warranty and US-Based Customer Service
- Easy: Simply Power it On, Dip the Testing Probe into Your Brake Fluid Reservoir and Check the LED Indicators for Water Content in your DOT3, DOT4 and DOT5.1 Brake Fluid
- Convenient: Compact Size and Built-in Pocket Clip Make it Easy to Keep the Fluid Tester Handy
- Complete: Includes AAA Battery, Just Load, Power Up and Test Your Fluids
- Accurate: Meets Tough European CE and RoHS Standards
9.8Exceptional
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Value for Money2
TYRAREXBrake Fluid Tester Automotive Digital Brake Fluid Detector Moisture Detector for DOT3 DOT4 DOT5.1, Car Brake Fluid Boiling Point Meter with 2.8" Display Audible Alarm High Precision Probe (T10)
Main highlights- 【Wide Compatibility】This 12V Brake Fluid Tester is compatible with DOT-3, DOT-4, DOT-5.1, and most synthetic brake fluids, a good tool to monitor brake oil condition by detecting the water content in the brake fluid, and helps you determine whether the brake fluid needs to be replaced. NOTE: Country of Origin: China.
- 【Normal mode and expert mode】The expert mode is convenient for professional mechanics to select the appropriate brake fluid model for accurate testing. The brake fluid tester can test DOT-3, DOT-4 and DOT-5.1 brake fluids and offers specific test options for brands such as MOTUL, ATE, FERODO, MOBIL, BREMBO, TRW, BOSCH, CASTROL, TOTAL, VALEO, FUCHS, etc. NOTE: Please check the type of brake fluid before purchasing.
- 【Moisture Content Test】Indicates [ OK ] when the water content is between 0%-2%, [ ! ] when the water content is between 2%-3%, and [ X ] when it is higher than 3%.
- 【High-sensitivity probe】Equipped with a high-sensitivity sensor and a 260mm long foldable hose that can be rotated 180 degrees. The outer layer of the hose is made of 304 stainless steel, which is characterised by its oil resistance, oxidation resistance and corrosion resistance. The overall construction is smooth and compact.
- 【2.8' HD Display with Backlight】The MRCARTOOL Brake Fluid Moisture Meter has a 2.8-inch LCD display with backlight, which provides users with a clearer display regardless of strong light or dark night, making your work more efficient and effortless.
9.6Exceptional
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3
KINGBOLENBrake Fluid Tester, Auto Brake Diagnostic Testing Tool, Hydraulic Fluid/Liquid/Oil Moisture Analyzer with 9 LED Indicators for DOT3/DOT4/DOT5.1 Brake Fluid(BF100)
Main highlights- 【W-ORRY-F-REE SERVICE】The package doesn't include battery, please buy batteries in your local market. And We offer 1 year W-arranty. If you cannot confirm its compatibility, please feel f-ree to consult us. If you encounter problems during use Brake Fluid Tester , please contact us with Amazon or send mail to support@kingbolen. com . We will reply to you as soon as possible and solve the troubles, and give you a good shopping experience.
- 【Support all kinds of Cars】KINGBOLEN Brake Fluid Tester can be used on all cars; It is easy-to-use and suitable for testing the water percentage in the brake fluid. Any problems please contact us to get prompt solutions. please contact us with Amazon or send mail to support@kingbolen. com .
- 【Support DOT3, DOT4, DOT5.1】Quick and easy method to accurately gauge the moisture content of all types of brake fluid.
- 【High Precision Sensor 】KINGBOLEN Brake Fluid Tester has nickel plated metal probe, which is oil-proof and oxidation-proof, with good condition and high precision.
- 【5 STATUS EXPLANATION 】With multiple LED indicators, the measurement results are more accurate and more convenient to use!
9.4Excellent
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4
ITEQ18% OffITEQ Brake Fluid Liquid Tester Pen with 5 LED Indicators, Calibrated For DOT3 DOT4 Brake Fluid
9.3 Simple to use8.7 Precision8.0 lasts a long timeWhy 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.
9.2Excellent
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5
carleefCar Brake Fluid Tester Pen with Buzzer Alarm&3 Colors Backlight,Brake Fluid Moisture Tester Calibrated DOT3 DOT4 DOT5.1 Brake Fluid,Universal Car Accessories Brake Fluid Test Strips
Main highlights- Warm Reminder: 2 AAA 12V batteries are not included in our brake fluid tester, you need to buy them by yourself. Check the probe for dirt or breakage before use, after using, protect the detection head in order not to affect your detection accuracy
- Use Method: You need to press the red power button of the brake fluid tester pen, and fully immerse the metal part of the pen in the liquid, the screen will display the test results. After testing, please clean the probe head and put on protective cover
- Double Alarm: When brake fluid tester's screen display 0~2%, green light, is usable brake fluid; 2~3%, yellow light and slow clattering, should change the fluid. Greater than 3%, bright red light and rapid buzzing, please change the fluid immediately
- Car Essential Tool: Once the water content in the brake fluid reaches or exceeds 3%, will lead to a decrease in braking power, resulting in brake failure. Our brake fluid tester providing you with fast and accurate readings for your driving secure
- 3-Gear Detection: Our brake fluid moisture tester can detect DOT3, DOT4, and DOT5.1 brake fluid. You can make adjustments by pressing the green S-button, and there will text identified on the left side of the display, and defaults to DOT3 when powered on
9.1Excellent
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6
TESMENTESMEN TBF-300 Brake Fluid Tester with 8.5-Inch Corrosion Resistance Gooseneck Probe, Testing for DOT3, DOT4, DOT5.1, Brake Fluid Tester Pen with Light, Data Hold, Backlight Alarm for Auto Care-Blue
Main highlights- What will you get: TESMEN TBF-300 Brake Fluid Tester comes with 2*1.5V AAA batteries, a user manual. Additionally, it comes with a custom storage pouch that helps protect the metal probes from wear and tear while also preventing loss
- Precise Measurement: TESMEN TBF-300 Brake Fluid Tester supports DOT3, DOT4, and DOT5.1 brake fluid types, providing accurate readings within the 0%-4% range that is perfect tool for both service professionals and DIY enthusiasts
- Large Display for Easy Reading: TESMEN TBF-300 Brake Fluid Tester features an enlarged screen and a data retention function, ensuring clear and convenient reading and recording of measurements
- Enhanced Functionality: TESMEN TBF-300 is equipped with an flashlight illumination to ensure that your tests are not affected by ambient light. This feature enables accurate testing even in low light or dark conditions, increasing the convenience and versatility of the tester while providing a more comprehensive inspection experience
- Corrosion-resistant and Clean: TESMEN TBF-300 brake fluid tester features a corrosion-resistant metal probe paired with an 8.5-inch adjustable gooseneck. This design ensures flexible operation while preventing device corrosion and maintaining cleanliness, ultimately extending the tester's lifespan
9.0Excellent
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7
KAIWEETS12% OffKAIWEETS 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
Why we love it
Durable and corrosion-resistant design.
Quick and precise measurements.
User-friendly with convenient alerts.
8.9Very Good
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8
POROMETISTOBrake Fluid Tester POROMETISTO FT01, Brake Fluid Moisture Tester with 8.5-Inch Corrosion Resistance Probe, Brake Fluid Detector with Flashlight, Data Hold, Backlight Alarm for DOT3, DOT4, DOT5.1-Black
Main highlights- What will you get: POROMETISTO FT01 brake fluid detector, 2*1.5V batteries, instruction manual, box
- Three-color Backlight + Buzzer Reminder: bright green backlight indicates that the brake fluid is usable; bright yellow backlight, slow buzzer, please replace the brake fluid; bright red backlight, fast buzzer, please replace the brake fluid immediately
- Multi-function: This automotive brake fluid testing tool has a flashlight, can measure in a dark environment, automatically shuts down, has data hold, and low battery prompts. Whether it is daily vehicle maintenance at home, repair and maintenance at a car shop, or a vehicle breakdown and a need to troubleshoot brake problems, this brake oil detector is a reliable vehicle detection tool
- High-precision Metal Probe: This brake fluid tester pen is equipped with a high-precision metal probe and an 8.5-inch corrosion-resistant metal hose. The probe can be operated flexibly in a small space, and the rigid support provides stable and easy cleaning
- Fast and Accurate Measurement: This brake fluid tester has an accuracy of up to ±0.3% and a detection range of 0% - 4%. It can detect DOT3, DOT4, and DOT5.1 fluids. FT01 Brake Fluid Liquid Tester is an ideal tool for professional maintenance personnel, DIY enthusiasts, car owners, or brake fluid quality testers
8.8Very Good
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9
TESMENTESMEN TBF-200 Brake Fluid Tester with 8.5-Inch Corrosion Resistance Gooseneck Probe, High-Precision Brake Fluid Tester Pen with Data Hold, 3 Colors Backlight Alarm for DOT3, DOT4, DOT5.1-Green
Main highlights- What will you get: TESMEN TBF-200 Brake Fluid Tester comes with 2*1.5V AAA batteries, a user manual. Additionally, it comes with a custom storage pouch that helps protect the metal probes from wear and tear while also preventing loss
- Versatile and Feature-Rich: TESMEN TBF-200 Brake Fluid Tester is a comprehensive inspection tool, compatible with three types of brake fluids: DOT3, DOT4, and DOT5.1. Additionally, it features a data hold function, making it easy to record measurements during testing
- Efficient Measurement and Quick Readout: TESMEN TBF-200 is equipped with a digital display and a tri-color backlight alarm system. With a measurement range of 0%-4%, it allows you to quickly draw conclusions based on the clearly displayed values
- Corrosion-resistant and Clean: TESMEN TBF-200 brake fluid tester features a corrosion-resistant metal probe paired with an 8.5-inch adjustable gooseneck. This design ensures flexible operation while preventing device corrosion and maintaining cleanliness, ultimately extending the tester's lifespan
- Compact and Portable for Easy Use: Weighing only 0.15lb and featuring a convenient back clip, the TESMEN TBF-200 is designed for easy portability. Its user-friendly design makes it an essential tool for ensuring your safety and peace of mind
8.5Good
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10
intendvisionBrake Fluid Tester Pen, Automotive Brake Fluid Liquid Tester, High-Precision Brake Fluid Moisture Tester, Oil Moisture Tester Analyzer Meter and Calibrated for DOT3, DOT4, DOT5.1
Main highlights- 【Sound & Light Dual Alarm】When the brake fluid tester detects the value is between 0~2%, the backlight turns green, which means the brake oil can still be used. When the value is tested between 2~3%, the backlight is yellow, and the buzzer buzzes slowly, please change the brake oil. When the detected value is above 3%，the backlight turns red, and the buzzer buzzes quickly, please change the brake oil immediately. Tips: please wipe the probe clean, otherwise it will affect the results
- 【Fast and Accurate Measurements】This brake fluid tester ensures quick and precise readings with an accuracy of ± 0.3%, covering a range of 0% - 4%. Whether you're checking DOT3, DOT4, or DOT5.1 fluids, this device offers reliable results, helping you easily maintain optimal brake performance. It is extremely easy for personal use and is widely used for private workshops, repair shops and car dealerships
- 【Easy to Use]】With its compact design, this brake fluid tester is easy to carry and storage. It operates on 2x1.5V AAA batteries and functions well within a temperature range of 0-40°C. Its user-friendly design and quick measurement capabilities make it an essential tool for both professional mechanics and DIY enthusiasts
- 【Durable and Corrosion-Resistant】Featuring a corrosion-resistant probe, this brake fluid tester is designed for long-lasting performance. Please wipe the probe and device clean after using, keep the device dry to avoid affecting the check result
- 【Convenient Pocket Clip Design】Lightweight and compact, this brake fluid tester conveniently clips to your shirt pocket to carry with you. It fits nicely and ergonomically in your hand while working. Has an easy-to-understand interface, customers can operate the device with one hand. Out of the box you can rest assured of the Brake Fluid Tester and just enjoy 3-Year provided by Intendvision. Anything please feel free to contact us and we will try our best to help
8.2Good
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