10 best brake fluid moisture testers
Brake Fluid Moisture Testers are specialized tools used in automotive maintenance and repair, particularly in the context of the brake system and replacement parts. These testers play a crucial role in ensuring the safety and proper functioning of a vehicle's braking system. Here's what you should know about them:
Purpose: Brake fluid moisture testers are designed to measure the moisture content within the brake fluid of a vehicle. Brake fluid is hygroscopic, meaning it absorbs moisture from the surrounding environment over time. Excessive moisture in the brake fluid can lead to a decrease in braking performance and, in extreme cases, brake system failure.
Testing Method: These testers typically use various testing methods, such as conductivity or capacitance, to determine the moisture level in the brake fluid. They provide a digital or analog readout of the moisture content, allowing mechanics and technicians to assess whether the brake fluid needs replacement.
Importance of Testing: Regularly testing brake fluid for moisture is essential because moisture can lead to several issues within the brake system. Moisture can cause corrosion of brake components, reduce the boiling point of the fluid (resulting in brake fade under heavy braking), and compromise the overall effectiveness of the brakes.
Maintenance and Replacement: When a brake fluid moisture tester indicates that the moisture content exceeds the recommended levels, it is an indicator that the brake fluid should be replaced. Brake fluid replacement is a crucial part of brake system maintenance to ensure optimal braking performance and safety.
Safety Compliance: Brake fluid moisture testers are valuable tools for ensuring that a vehicle's brake system complies with safety regulations and standards.Properly maintained brakes are essential for the safety of both the vehicle occupants and others on the road.
Professional Use: These testers are commonly used by automotive technicians and mechanics during routine vehicle maintenance and brake system servicing. Regular testing and replacement of brake fluid are typically recommended at specific intervals as per the vehicle manufacturer's guidelines.
In summary, brake fluid moisture testers are essential tools in the automotive industry, primarily used for testing and monitoring the moisture content of brake fluid. By identifying high moisture levels, these testers help ensure the safety and effectiveness of a vehicle's braking system, making them an important component of routine automotive maintenance and repair.
Below you can find our editor's choice of the best brake fluid moisture testers on the marketProduct description
How to Use:
1. Turn on the brake fluid tester by pressing the button on top. A green light should light up. If the light does not come on, it may be time to change a battery
2. Unscrew the lid for the brake fluid reservoir, and take off the cap for the brake fluid tester
3. Dip the test probes into the brake fluid and the LED lights will indicate the percentage of water in the brake fluid
4. After testing, remember to screw the lid of the brake fluid reservoir back on tightly
5. The tester will automatically power off after 12 seconds of inactivity
What to Do:
The LED lights will indicate the percentage of water in the brake fluid:
- Green: No water
- Green/Yellow: Less than 1% of water
- Green /Yellow/Yellow: Approx.2% of water
- Green/Yellow/Yellow/Red: Approx.3% (Brake fluid should be changed)
-Green/Yellow/Yellow/Red/Red: Approx.4% (Brake fluid must be changed urgently!)
Please Note:
The ITEQ brake fluid tester is calibrated for DOT4 and DOT3 brake fluids, and DOT4 is used in most cars produced since 2006
Replace the battery if the green LED indicator no longer lights up after you press the button
Wash the test probe with tap water after every use
In case of skin contact with brake fluid, thoroughly wash the affected skin or clothing with water
Do not expose brake fluid to the atmosphere for a long time as it is highly hygroscopic
Package:
1 x brake fluid tester(Battery Not Included)
- 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
- The LED indicators will show percentage of water in the brake fluid with 3 colors green yellow and red
- Calibrated for cars using DOT4 and DOT3 brake fluids (But DOT3 is almost replaced by DOT4 because DOT4 has better performance)
- Only takes seconds to know the results,very easy to use
- CE and RoHS approved. Protective cap included.Takes 1 x AAA/1.5V battery (not included)
User questions & answers
Question: | Should be tasted when fluid is after driving or car has to stay over night? Bc I tried both methods and got completely different results |
Answer: | I didn't test after driving the car- maybe after 3-4 hours after driving it, but I don't know if that matters. I did use the tester in a clean cup of water to ensure that it would light up (red?) with Water & it didn't light up red when I tested my brake fluid (maybe yellow?), so I assume that it is working. Sorry, it has been a few months since I last used it. |
Question: | My sonata has a plastic strainer at top. how can i get the probes past that? how to remove strainer |
Answer: | I don't have a Hyundai, but my Nissan has the strainer, and it is removable. Maybe try and see if yours is removable. I just stuck my finger in and applied outward pressure to the wall and it eventually lifted out. Hope it helps. The device definitely works though. |
Question: | Will this work with 5.1 brake fluid |
Answer: | Thanks for asking. The ITEQ Brake Fluid Tester works with DOT 3, DOT 4 and DOT 5.1 brake fluids but not with DOT 5 Brake Fluid. The main difference between DOT 4 and DOT 5.1 brake fluids is in their boiling points. DOT 4 and DOT 5.1 are both glycol-based brake fluids which are used widely in the automotive and cycle industry. They are compatible with each other, which means they can be readily mixed without harming your brake system. But please never mistake with DOT 5 which is silicone-based and should never be mixed with any other DOT fluid. Hope these information can be help with you. |
Question: | Why it says here also for dot 3 and package says for dot |
Answer: | Hi, the tester works for both dot 3 and dot 4 brake fluid. And the dot 4 liquid is more widely applied because it has better performance than dot 3 liquid. The package will be changed. |
Product description
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. As moisture seeps into the brake system through the brake hoses and seals the brake fluid will become contaminated and the danger of brake failure will increase. This pen-shaped brake fluid tester can easily help determine whether it's time for you to change your brake fluid. What to do: 1. Turn on the brake fluid tester by pressing the button. A green light should light up. If the light does not come on, it may be time to change a battery. 2. Unscrew the lid for the brake fluid reservoir, and take off the cap for the brake fluid tester. 3. Dip the test probes into the brake fluid and the LED lights will indicate the percentage of water in the brake fluid. 4. After testing, remember to screw the lid of the brake fluid reservoir back on tightly. 5. The tester will automatically power off after 12 seconds of inactivity. The LED lights will indicate the percentage of water in the brake fluid: Green: None Green/Yellow: Less than 1% Green /Yellow/Yellow: Approx. 2% Green/Yellow/Yellow/Red: Approx. 3% (Time to change brake fluid.) Green/Yellow/Yellow/Red/Red: Approx. 4% (Change brake fluid immediately). Please note:- This brake fluid tester is calibrated for DOT 4 brake fluid only, which is used in most cars produced since 2006. - Replace the battery if the green LED light no longer lights up after you press the button. - Wash the test probe with tap water after every use. - In case of skin contact with brake fluid, thoroughly wash the affected skin or clothing with water. - Do not expose brake fluid to the atmosphere for a long time as it is highly hygroscopic.
- Quick and easy way to test for moisture content in the brake fluid; results appear in seconds!
- LED light indicators show percentage of water in the brake fluid
- Calibrated for cars using DOT 4 brake fluid only (found in most cars produced since 2006)
- Takes 1 x AAA/1.5V battery (included)
- Only takes seconds to know the results
User questions & answers
Question: | Why does packaging and description indicate this product only works with dot4 if consumers are saying it works on dot3? does it really work on dot |
Answer: | This product did not work for me. Tested it on newly bought DOT3 and DOT4 brake fluid and the device said they were old |
Question: | How much the probes must be in the brake fluid? I found that variation will change the reading |
Answer: | I received my tester yesterday and I too have different readings depending on how deep I place the probes. follow the instructions, I have 4%, just the tips I have 1%. Is the readings false because I use Amsoil brake fluid? |
Question: | Can this also be used for transmission and power steering fluids |
Answer: | No, this tester is to find the amount of water in brake fluid. Most brake fluids are alcohol based, transmission fluid is oil-based. |
Question: | I use Valvoline Dot 3 and 4 brake fluid. It's both Dot 3 and 4. Will this tester work with that fluid |
Answer: | Upon further review I note that this tester only works for DOT 4 brake fluid. As of model year 2017 Toyota and Honda are using Dot3. My comments don't change except for excluding Toyota and Honda and that both have sophisticated on board computers that monitor all the systems-which are considerable in the Hybrids. |
- SAFE&USEFUL---The unit is Mini Pen Liquid Moisture Water Tester Tool. Check the health status of DOT3, DOT4, DOT5 car brake fluid, it will be safer for your driving.
- 5 LED INDICATORS---5 LED to indicate percentage of water in the brake fluid with three colors green yellow and red. Even in the dark does not affect reading, make reading data easier.
- EASY TO USE---The brake fluid tester is easy to use. Check the quality of brake fluid in car only takes seconds. Make it easier to operate for beginner. It's a must-have car tool for your car owners.
- PORTABLE&DURABLE---Brake fluid tester pen is small compact size, easy to carry. Super strong ABS shell, has long service life.
- AUTO TURN OFF---In order to save power, this test pen has the automatic shutdown function, it will automatically turn off the power 15 seconds after starting every time.
User questions & answers
Question: | Does the brake fluid |
Answer: | According to the listing for the item, it does. I only used mine on DOT 3 so I don't know for sure. My guess would be that the only one it wouldn't work on is DOT 5/SIlicone brake fluid |
Question: | What is the difference between this model for $8.91 and the $6.99 model, bft034bl300-lw |
Answer: | can't tell you the difference , only that the one I bought fell apart . |
Question: | Does it work for DOT |
Answer: | dot 5 is silicone based & dot 5.1 will hold moisture. this product detects moisture content |
Question: | Name every single fluid this can test please? Can it do power steering |
Answer: | brake fluid only |
Product features
eOUTIL Brake Fluid Tester
- A digital brake fluid tester suitable for checking the quality of brake fluid in car.
- Developed for professional use in automotive repair shops and in servicing.
- 5 LEDs to indicate percentage of water in the brake fluid.
- Operated by a LR03 AAA 1.5V battery.
What is Brake Fluid? Why Need to Check and Change the Brake Fluid?
- Brake Fluid, also known as hydraulic fluid, is responsible for moving the various components of your vehicle’s braking system. Brake fluid is a non-compressible substance that lies within the brake lines, delivering the force created by your push on the brake pedal to each of the brake rotors on the four corners of your vehicle. This applies pressure to the wheels and ultimately slows or stops your movement. The fluid operates under high temperatures and high pressure and, without it, your car or truck would not be able to stop when you push the brake pedal inside your vehicle.
- Over time, brake fluid can absorb moisture from the air, which will cause the fluid to degrade and not work properly. This is why it is important to periodically check the oil fluid and drain it out and replace it with new fluid to ensure proper brake fluid function. That's also why we recommend this Brake Oil Detection Pen to you.
- Regular inspection, replace oil fluid when the red light of the tester is on.
A Must-have in Your Family Toolbox
- Portable
- Easy operation
- Provide more security for your family
A Good Choice as Gift
- Simple
- Good value for money
- A great gift if your family or friends buy a new car.
Your Good Assistant in Garage
- Professional.
- Accurate
- Improve your work efficiency
Product description
The tester can be used as a digital brake fluid tester suitable for determining brake fluid quality. Developed for professional use in astomotive repair shops and in servicing. Quality is tested and included on five LEDs in terms of "per cent of water in the brake fluid . "
Ready for Brake Fluid Test
Unscrew the brake fluid reservoir, and pull off the cap of the Brake fluid tester.Dip the test probes into the brake fluid up to the plastic rim of the device.
To check Fluid Quality
Press the button for power on, green LED will light up. Insert the tester into reservoir for one second then the tester result will be correctly indicated by LEDs.Repress the button for power off. The tester will automatically power off after about 15 seconds of inactivity.
Tester Specification:
1. To check the quality of brake fluid quality
2. 5 LEDs to indicate percentage of water in the brake fluid
3. Automatically power off
4. Operated by a LR03 AAA 1.5V battery (Not included)
Tester Instructions:
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.
1. the green LED lights = water content in the brake fluid H2O <1.5%, brake fluid qualified
2. the yellow LED lights = brake fluid water content H2O = 1.5% to 3%, can continue to use, test again six months later
3. the red LED lights = water content in the brake fluid H2O> 3%, can not continue to use the brake fluid needs to be replaced Red LED: change brake fluid
Tester Features:
Five LED indicators show
- PROTECTS YOU & YOUR CAR : Check the health status of DOT3, DOT4 car brake fluid, Brake Fluid Tester Pen can be used as a digital brake fluid tester suitable for determining brake fluid quality. It will be safe for your driving
- EATY TO USE : Press the button , Insert the tester into reservoir for one second then the tester result will be correctly indicated by LEDs.Repress the button for power off.
- 5 LEDS : 5 LED display lights the percentage of moisture content in the brake fluid, as the test results are more accurate
- USEFULL : Supports DOT3 DOT4 DOT5 brake fluid .
- EASY TO CARRY : Small size ,you can take it in pocket , take 1 AAA 1.5V battery. automatic shutdown after about 15 seconds of inactivity
Product description
Attention
Replace battery if the green LED not light up any longer after you press power on button . Wash the test probe with tap water after every use.
Do not expose brake fluid to the atmosphere for a long time as the fluid is highly hygroscopic!
In case of skin contact with brake fluid, thoroughly wash the affected skin or clothing with water.
Green/Yellow/yellow/red: Approx.3% of water content in brake fluid. The brake fluid should be changed.
Green/Yellow/yellow/red/red: At least 4% of water content in brake fluid. The brake fluid must be changed urgently! Extreme danger!
- Check the health status of DOT3, DOT4 car brake fluid, dangerous if you do not change brake fluid timely
- 5 LED display lights the percentage of moisture content in the brake fluid, as the test results are more accurate
- Easy to use simply power up, dip probes into brake fluid and read results,Only takes seconds to know the results
- High quality electrical conductivity mental design, super strong ABS shell, small compact size, easy to carry in pocket
- Operated by a LR03 AAA 1.5V battery (not included), automatic shutdown after about 15 seconds of inactivity
- Wide Application: This brake fluid tester is universal fit for most vehicle. Check the health status of DOT-3, DOT-4, DOT-5.1 brake fluid and most synthetic brake fluids. It's very convenient for personal use and broadly applied in individual workshops, repair factories and dealer workshops.
- High Precision: Very fast and accurate to test DOT-3, DOT-4, DOT-5.1 brake fluid.The Goose Neck Probe of the brake fluid tester is very sensitive,only takes seconds to know the results.
- Special Design: High resolution LCD display with backlit provides an intuitive interface for easy reading data even in the dark . The fuselage has good texture, one button and one function, easy to operate. Buzzing alarm system, test result is clear absolutely.
- Universal Probe: The goose neck probe provides flexibility on detection.It is made of special materials that it can be resistant to oils and oxidation,not easily corroded.There are LED lights on the probe, you can observe the color of the brake fluid when necessary.
- Energy Saving and Environmental Protection: Our automotive brake fluid tester has the automatic shutdown function, it will automatic shutdown after 5 minutes of standby.And only 2 AAA 1.5v batteries are needed when using.It's power saving and simple for using.
User questions & answers
Question: | Does it only test brake fluid? Can it test power steering fluid or antifreeze coolsnt |
Answer: | What part of Brake Fluid tester is not clear !!! |
Question: | Does it come with the battery |
Answer: | Hi dear customer, Due to shipping policy, battery not included. |
Question: | Is the probe easy to break? I bought a tester from another brand before, the probe is easily broken |
Answer: | Hello dear customer, The probe of this brake fluid tester is made of special materials that it can be resistant to oils and oxidation,durable and not easily broken. Thank you! |
Question: | Is the brake fluid tester made of plastic |
Answer: | Hi dear customer, The outer cover is made of good quality ABS material,and the probe is made of durable and not easy corroded special material. |
Product features
BF-200 Brake Fluid Tester
Brake pressure was transmitted by brake fluid, the pressure transmission will be out of function once brake fluid including too much water. In order to safe-driving,we must test water ratio scale in brake fluid regularly. The brake fluid tester helps us do current maintenance, make sure we drive in safe condition.
DOT 3 / 4 / 5.1
Support multiple types of brake fluid in one tool.
Check the health status of DOT-3, DOT-4, DOT-5.1 brake fluid and most synthetic brake fluids.
Convenient for personal use and broadly applied in individual workshops, repair factories and dealer workshops.
How To Use ?
1. Install 2 AAA 1.5v batteries at the back of brake fluid tester.(battery not included)
2. After inserting the battery, press POWER button to turn on the tester, the LCD display lights turn on indicates the product self-test is successful.
3. Press MENU button,it will recycle from DOT3 to DOT4 to DOT5.1 on the display. Select the brake fluid model of your vehicle.
4. Put the goose neck probe into the brake fluid and see the data on the display.
5. According to results to find out the status of brake fluid.
Indicator Results:
0.1% - 0.5% High Purity (Good)
1.0% - 2.0% Status Is Acceptable (OK)
3.0% - 4.0% Need To Replace (Dangerous)
Tips:
In order to insure braking performance, it's recommended when measuring the index to reach the range of ≥3%,please change the brake fluid in time to protect driving safety.
High Resolution Screen
Display the clear test result even in the dark night,as well as in the brightest day.
High Sensitivity Probe
With advanced high-quality sensor,it is highly sensitive and quick to respond ,convenient to use.
Sound Alarm
When the moisture content of the brake fluid is detected to exceed the standard, alarm will be
sounded to replace the brake fluid.
Package Includes
1 x Brake fluid tester
1 x User manual card (in English)
- 【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
- 【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.
- 【Support DOT3, DOT4, DOT5.1】Quick and easy method to accurately gauge the moisture content of all types of brake fluid.
- 【5 STATUS EXPLANATION 】With multiple LED indicators, the measurement results are more accurate and more convenient to use!
- 【WORRY-FREE SERVICE】The package doesn't include battery, please buy batteries in your local market. And We offer one year warranty. If you cannot confirm its compatibility, please feel free to consult us.
User questions & answers
Question: | Where is this made |
Answer: | This brake fluid tester was made in China. |
Question: | Does this measure only water/moisture or copper level too |
Answer: | Only water |
- Check the health status of DOT3, DOT4 car brake fluid, dangerous if you do not change brake fluid timely;with capacity 1oz Plastic Nylon Baster to help your get the fluid
- 5 LED display lights the percentage of moisture content in the brake fluid, as the test results are more accurate
- Easy to use simply power up, dip probes into brake fluid and read results,Only takes seconds to know the results
- High quality electrical conductivity mental design, super strong ABS shell, small compact size, easy to carry in pocket
- Operated by a LR03 AAA 1.5V battery (not included), automatic shutdown after about 15 seconds of inactivity
Product description
Operation Manual:
1. Install one 9V(6F22) battery at the back of tester.(battery not include)
2. After inserting the battery, press POWER button to turn on the tester, all LEDs lights turn on with buzzer sounding, indicates the product self-test is successful.
3. Press SELECT button, it will locate DOT3 model automatically.
4. Each time you push the SELECT button, it will recycle from DOT3 to DOT4 to DOT5.1 with the indicator LEDs.
5. Immerse the probe into brake fluid, the different colored LED lights mean as below:
Green Light: indicates the brake fluid water content is below 1%
The First Yellow Light: indicates the brake fluid water content is approximately 1.5%
The Second Yellow Light: indicates the brake fluid water content is approximately 2.5%
The First Red Light: indicates the brake fluid water content is approximately 3%
The Second Red Light: indicates the brake fluid water content is more than 4%
6. Press POWER button to turn off the tester.
Note:
<1. After use, please clean the probe and avoid any retention of stains that might affect the test.
<2. If in use for a long time, best to remove all batteries and store in a dry place at normal room temperature.
Package include:
1x Brake fluid tester
1x User manual (in English)
battery not include
- Brake pressure was transmited by brake fluid, the pressure transmit will out of function once brake fluid include too water. In order to safe-driving, we must test water ratio scale in brake fluid regularly. The brake fluid tester help us do current maintenance, make sure we drive in safety condition.
- Brake fluid tester with 250mm goose neck probe provides flexibility of detection
- Chromed detector resistant to oils and oxidation; 2.2 inch LCD display with backlit provide intuitive interface
- Hand-held size provide one hand operation experience
- Buzzing and red light double alarm system, test result is clear absolutely
Product description
How to Use:
1. Turn on the brake fluid tester by pressing the button on top. A green light should light up. If the light does not come on, it may be time to change a battery
2. Unscrew the lid for the brake fluid reservoir, and take off the cap for the brake fluid tester
3. Dip the test probes into the brake fluid and the LED lights will indicate the percentage of water in the brake fluid
4. After testing, remember to screw the lid of the brake fluid reservoir back on tightly
5. The tester will automatically power off after 12 seconds of inactivity
What to Do:
The LED lights will indicate the percentage of water in the brake fluid:
- Green: No water
- Green/Yellow: Less than 1% of water
- Green /Yellow/Yellow: Approx.2% of water
- Green/Yellow/Yellow/Red: Approx.3% (Brake fluid should be changed)
-Green/Yellow/Yellow/Red/Red: Approx.4% (Brake fluid must be changed urgently!)
Please Note:
The ITEQ brake fluid tester is calibrated for DOT4 and DOT3 brake fluids, and DOT4 is used in most cars produced since 2006
Replace the battery if the green LED indicator no longer lights up after you press the button
Wash the test probe with tap water after every use
In case of skin contact with brake fluid, thoroughly wash the affected skin or clothing with water
Do not expose brake fluid to the atmosphere for a long time as it is highly hygroscopic
Package:
1 x brake fluid tester(Battery Not Included)
- Five LED indicators show the test results more accurate.
- Testing 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
- 5 LEDs to indicate percentage of water in the brake fluid
- Automatically power off,Operated by a LR03 AAA 1.5V battery (Not included)
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