Deliver toUnited Arab Emirates
Brake Fluid Liquid Tester Pen with 5 LED Indicators, DOT 3 DOT 4 DOT 5.1 Brake Fluid Liquid Tester Pen, Auto Brake Diagnostic Testing Tool Analyzer, Universal Car Accessories

Description:

  • 【Quick & Convenient】: The brake fluid moisture tester can widely test the percentage of moisture in DOT3, DOT4, DOT5.1 brake fluid. It can check the health status of your car brake fluid quickly, and remind you to change the brake fluid in time. It's extremly convenient for personal use and broadly applied in individual workshops, repair factories and dealer workshops.
  • 【5 LED Lights】: This brake fluid tester comes with 5 LED indicators to show the percentage of moisture in the brake fluid. It will show percentage of water in the brake fluid with 3 colors, green, yellow and red. Red indicates the brake fluid needs immediate replacement. Green represents good condition, and yellow indicates the state is acceptable but soon require replacement.
  • 【Easy to Use】: The brake fluid tester pen is easy to use with its intuitive design. Simply insert the metal probe into the brake fluid, after a few seconds, the corresponding LED light will light up and display the result. After the test is completed, the test pen will automatically close after 12 seconds.
  • 【Premium Material】: This brake fluid tester is made of brass-plated metal, which is resistant to oil, oxidation and corrosion. The shell is black matte plastic, better anti-slip and good body texture. The change of conductivity can be used to determine the change of moisture in the brake fluid.
  • 【Package Includes】: You will receive a brake fluid tester, which is suitable for determining brake fluid quality. It is compatible with AAA batteries, but please note that the battery is not included in the package. So you should prepare it by yourself. In order to save power and to prevent corrosion, please take out the battery after the test and clean the detector.

  • Reviews:

    5.0 out of 5 stars Great value

    A.C. · July 26, 2025

    Works great! Only $6. What a great value!

    5.0 out of 5 stars Great device

    A.G. · July 11, 2025

    Great tool, just pop it in for a quick reading

    4.0 out of 5 stars Good enough, fast but variable readings, fair price.

    G. · August 23, 2024

    The media could not be loaded. This is fast and easy to use. Display is bright. Performance and quality in terms of accuracy is hard to measure. It can definitely tell the difference between brand new fluid and water. Those results were exactly as your expect. On my used fluid, the results ranged from 2-4% and I took several tests to conclude the mode reading of 3% was probably fairly accurate. For the price it's a reasonable value even if not professional quality. Battery required is a single AAA, and the re-closable bag is a good place to store both between uses.

    5.0 out of 5 stars Highly recommend

    S. · June 4, 2025

    I am a DIY, basic maintenance type of person: oil changes, brake and rotors, filters, etc. I have always wondered when to flush the brake fluid. Being hydroscopic, brake fluid will need to be changed, but you cannot just look at the color and know the time has come. This little tester has allowed me to better keep check on the fluid health. Highly recommend!

    5.0 out of 5 stars Must have in order to save on a brake fluid change

    I.K. · May 27, 2025

    Works as attended and it read mine as one percent and was able to save myself a break fluid change and do you recommend getting one so you know when to change your brake fluid.

    5.0 out of 5 stars Save a life, check your brake fluid.

    R. · July 28, 2025

    I was highly skeptical that I needed one of these in my life. Then I opened up my brake fluid which was supposedly being done at the dealership for the last 3 years and it was green. No not black, green. Yes that's right, the brake fluid was green. I'm talking green like Green Eggs and Ham , yes Sam I am. I threw the test pen into the master cylinder and it said 4%, which I guess is red for dead. This is the easiest thing to use in the world, you click the button unscrew the master cylinder throw the tester into the brake fluid and look for the light. You have a 5 position light that indicates what percent the amount of water in the brake fluid is. Green for go, yellow for warning and red for dead. Looking at the brake fluid you could clearly tell it was very bad so obviously the tester itself is accurate. The build quality seem sufficient for what it is, it does not say it is waterproof so make sure to only immerse the testing probes. I recommend not storing a battery in the pen if you're going to not check anything long term. Oh yeah you need 1 AAA battery that should last forever. Now I'm spending $200 on Bolo for an automatic brake flushing machine so I never have to pay the dealership again. You should too, It'll help the economy.

    5.0 out of 5 stars Works as advertised

    J. · January 12, 2025

    I tested two cars, one I changed the fluid about 8 months ago and the other one month ago. Both read as I would have expected, so I don’t have any reason to question its accuracy. Quick, simple test for <$10 buys some peace of mind.

    4.0 out of 5 stars Don't leave your batteries inside.

    U. · June 30, 2025

    Why did you pick this product vs others?:It works however it eats your battery if you leave them in. Kind of sucks, but the product itself works and will tell you the health of your brake fluid.

    Brake Fluid Liquid Tester Pen with 5 LED Indicators, DOT 3 DOT 4 DOT 5.1 Brake Fluid Liquid Tester Pen, Auto Brake Diagnostic Testing Tool Analyzer, Universal Car Accessories

    Product ID: UO0PGZY44F6
    Condition: New

    4.5

    AED4086

    Price includes VAT & Import Duties
    Availability: In Stock

    Quantity:

    |

    Order today to get by 7-14 business days

    Delivery fee of AED 20. Free for orders above AED 200.

    Returns & Warranty policies

    Imported From: United States

    At BOLO, we work hard to ensure the products you receive are new, genuine, and sourced from reputable suppliers.

    BOLO is not an authorized or official retailer for most brands, nor are we affiliated with manufacturers unless specifically stated on a product page. Instead, we source verified sellers, authorized distributors or directly from the manufacturer.

    Each product undergoes thorough inspection and verification at our consolidation and fulfilment centers to ensure it meets our strict authenticity and quality standards before being shipped and delivered to you.

    If you ever have concerns regarding the authenticity of a product purchased from us, please contact Bolo Support. We will review your inquiry promptly and, if necessary, provide documentation verifying authenticity or offer a suitable resolution.

    Your trust is our top priority, and we are committed to maintaining transparency and integrity in every transaction.

    All product information, images, descriptions, and reviews originate from the manufacturer or from trusted sellers overseas. BOLO is not affiliated with, endorsed by, or an authorized retailer for most brands listed on our website unless stated otherwise.

    While we strive to display accurate information, variations in packaging, labeling, instructions, or formulation may occasionally occur due to regional differences or supplier updates. For detailed or manufacturer-specific information, please contact the brand directly or reach out to BOLO Support for assistance.

    Unless otherwise stated, all prices displayed on the product page include applicable taxes and import duties.

    BOLO operates in accordance with the laws and regulations of United Arab Emirates. Any items found to be restricted or prohibited for sale within the UAE will be cancelled prior to shipment. We take proactive measures to ensure that only products permitted for sale in United Arab Emirates are listed on our website.

    All items are shipped by air, and any products classified as “Dangerous Goods (DG)” under IATA regulations will be removed from the order and cancelled.

    All orders are processed manually, and we make every effort to process them promptly once confirmed. Products cancelled due to the above reasons will be permanently removed from listings across the website.

    Similar suggestions by Bolo

    More from this brand

    Similar items from “Brake Fluids”

    Brake Fluid Liquid Tester Pen with 5 LED Indicators, DOT 3 DOT 4 DOT 5.1 Brake Fluid Liquid Tester Pen, Auto Brake Diagnostic Testing Tool Analyzer, Universal Car Accessories

    Product ID: UO0PGZY44F6
    Condition: New

    4.5

    Brake Fluid Liquid Tester Pen with 5 LED Indicators, DOT 3 DOT 4 DOT 5.1 Brake Fluid Liquid Tester Pen, Auto Brake Diagnostic Testing Tool Analyzer, Universal Car Accessories-0

    AED4086

    Price includes VAT & Import Duties
    Availability: In Stock

    Quantity:

    |

    Order today to get by 7-14 business days

    Delivery fee of AED 20. Free for orders above AED 200.

    Returns & Warranty policies

    Imported From: United States

    At BOLO, we work hard to ensure the products you receive are new, genuine, and sourced from reputable suppliers.

    BOLO is not an authorized or official retailer for most brands, nor are we affiliated with manufacturers unless specifically stated on a product page. Instead, we source verified sellers, authorized distributors or directly from the manufacturer.

    Each product undergoes thorough inspection and verification at our consolidation and fulfilment centers to ensure it meets our strict authenticity and quality standards before being shipped and delivered to you.

    If you ever have concerns regarding the authenticity of a product purchased from us, please contact Bolo Support. We will review your inquiry promptly and, if necessary, provide documentation verifying authenticity or offer a suitable resolution.

    Your trust is our top priority, and we are committed to maintaining transparency and integrity in every transaction.

    All product information, images, descriptions, and reviews originate from the manufacturer or from trusted sellers overseas. BOLO is not affiliated with, endorsed by, or an authorized retailer for most brands listed on our website unless stated otherwise.

    While we strive to display accurate information, variations in packaging, labeling, instructions, or formulation may occasionally occur due to regional differences or supplier updates. For detailed or manufacturer-specific information, please contact the brand directly or reach out to BOLO Support for assistance.

    Unless otherwise stated, all prices displayed on the product page include applicable taxes and import duties.

    BOLO operates in accordance with the laws and regulations of United Arab Emirates. Any items found to be restricted or prohibited for sale within the UAE will be cancelled prior to shipment. We take proactive measures to ensure that only products permitted for sale in United Arab Emirates are listed on our website.

    All items are shipped by air, and any products classified as “Dangerous Goods (DG)” under IATA regulations will be removed from the order and cancelled.

    All orders are processed manually, and we make every effort to process them promptly once confirmed. Products cancelled due to the above reasons will be permanently removed from listings across the website.

    Description:

  • 【Quick & Convenient】: The brake fluid moisture tester can widely test the percentage of moisture in DOT3, DOT4, DOT5.1 brake fluid. It can check the health status of your car brake fluid quickly, and remind you to change the brake fluid in time. It's extremly convenient for personal use and broadly applied in individual workshops, repair factories and dealer workshops.
  • 【5 LED Lights】: This brake fluid tester comes with 5 LED indicators to show the percentage of moisture in the brake fluid. It will show percentage of water in the brake fluid with 3 colors, green, yellow and red. Red indicates the brake fluid needs immediate replacement. Green represents good condition, and yellow indicates the state is acceptable but soon require replacement.
  • 【Easy to Use】: The brake fluid tester pen is easy to use with its intuitive design. Simply insert the metal probe into the brake fluid, after a few seconds, the corresponding LED light will light up and display the result. After the test is completed, the test pen will automatically close after 12 seconds.
  • 【Premium Material】: This brake fluid tester is made of brass-plated metal, which is resistant to oil, oxidation and corrosion. The shell is black matte plastic, better anti-slip and good body texture. The change of conductivity can be used to determine the change of moisture in the brake fluid.
  • 【Package Includes】: You will receive a brake fluid tester, which is suitable for determining brake fluid quality. It is compatible with AAA batteries, but please note that the battery is not included in the package. So you should prepare it by yourself. In order to save power and to prevent corrosion, please take out the battery after the test and clean the detector.

  • Reviews:

    5.0 out of 5 stars Great value

    A.C. · July 26, 2025

    Works great! Only $6. What a great value!

    5.0 out of 5 stars Great device

    A.G. · July 11, 2025

    Great tool, just pop it in for a quick reading

    4.0 out of 5 stars Good enough, fast but variable readings, fair price.

    G. · August 23, 2024

    The media could not be loaded. This is fast and easy to use. Display is bright. Performance and quality in terms of accuracy is hard to measure. It can definitely tell the difference between brand new fluid and water. Those results were exactly as your expect. On my used fluid, the results ranged from 2-4% and I took several tests to conclude the mode reading of 3% was probably fairly accurate. For the price it's a reasonable value even if not professional quality. Battery required is a single AAA, and the re-closable bag is a good place to store both between uses.

    5.0 out of 5 stars Highly recommend

    S. · June 4, 2025

    I am a DIY, basic maintenance type of person: oil changes, brake and rotors, filters, etc. I have always wondered when to flush the brake fluid. Being hydroscopic, brake fluid will need to be changed, but you cannot just look at the color and know the time has come. This little tester has allowed me to better keep check on the fluid health. Highly recommend!

    5.0 out of 5 stars Must have in order to save on a brake fluid change

    I.K. · May 27, 2025

    Works as attended and it read mine as one percent and was able to save myself a break fluid change and do you recommend getting one so you know when to change your brake fluid.

    5.0 out of 5 stars Save a life, check your brake fluid.

    R. · July 28, 2025

    I was highly skeptical that I needed one of these in my life. Then I opened up my brake fluid which was supposedly being done at the dealership for the last 3 years and it was green. No not black, green. Yes that's right, the brake fluid was green. I'm talking green like Green Eggs and Ham , yes Sam I am. I threw the test pen into the master cylinder and it said 4%, which I guess is red for dead. This is the easiest thing to use in the world, you click the button unscrew the master cylinder throw the tester into the brake fluid and look for the light. You have a 5 position light that indicates what percent the amount of water in the brake fluid is. Green for go, yellow for warning and red for dead. Looking at the brake fluid you could clearly tell it was very bad so obviously the tester itself is accurate. The build quality seem sufficient for what it is, it does not say it is waterproof so make sure to only immerse the testing probes. I recommend not storing a battery in the pen if you're going to not check anything long term. Oh yeah you need 1 AAA battery that should last forever. Now I'm spending $200 on Bolo for an automatic brake flushing machine so I never have to pay the dealership again. You should too, It'll help the economy.

    5.0 out of 5 stars Works as advertised

    J. · January 12, 2025

    I tested two cars, one I changed the fluid about 8 months ago and the other one month ago. Both read as I would have expected, so I don’t have any reason to question its accuracy. Quick, simple test for <$10 buys some peace of mind.

    4.0 out of 5 stars Don't leave your batteries inside.

    U. · June 30, 2025

    Why did you pick this product vs others?:It works however it eats your battery if you leave them in. Kind of sucks, but the product itself works and will tell you the health of your brake fluid.

    Similar suggestions by Bolo

    More from this brand

    Similar items from “Brake Fluids”