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    • Brake Fluid Liquid Tester Pen, DOT 3 DOT 4 DOT 5.1 Brake Fluid Diagnostic Testing Pen, Vehicle High-Precision Hydraulic Liquid Oil Moisture Analyzer with 5 LED Indicators
    • Brake Fluid Liquid Tester Pen, DOT 3 DOT 4 DOT 5.1 Brake Fluid Diagnostic Testing Pen, Vehicle High-Precision Hydraulic Liquid Oil Moisture Analyzer with 5 LED Indicators
    • Brake Fluid Liquid Tester Pen, DOT 3 DOT 4 DOT 5.1 Brake Fluid Diagnostic Testing Pen, Vehicle High-Precision Hydraulic Liquid Oil Moisture Analyzer with 5 LED Indicators
    • Brake Fluid Liquid Tester Pen, DOT 3 DOT 4 DOT 5.1 Brake Fluid Diagnostic Testing Pen, Vehicle High-Precision Hydraulic Liquid Oil Moisture Analyzer with 5 LED Indicators
    • Brake Fluid Liquid Tester Pen, DOT 3 DOT 4 DOT 5.1 Brake Fluid Diagnostic Testing Pen, Vehicle High-Precision Hydraulic Liquid Oil Moisture Analyzer with 5 LED Indicators

    Brake Fluid Liquid Tester Pen, DOT 3 DOT 4 DOT 5.1 Brake Fluid Diagnostic Testing Pen, Vehicle High-Precision Hydraulic Liquid Oil Moisture Analyzer with 5 LED Indicators

    Regular Price $19.99
    shape: 1PCS

    Stock adequate! Ready to ship

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    Enhancing Safety: Brake fluid may lose its braking performance and affect driving safety after absorbing water. This tester helps you regularly check brake fluid condition and replace old fluid in time, maintaining the stability of the brake system and minimizing the potential safety hazards

    Accurate Measurement: Equipped with a high-precision probe, this tester quickly detects water levels in brake fluid and displays results clearly via a five-level LED indicator. The different colors of lights represent varying water percentages, allowing users to easily interpret the data

    Premium Material: The brake fluid tester pen is made of high-quality brass-plated metal probes to ensure high conductivity and durability. Its sturdy plastic casing is corrosion-resistant and wear-resistant, ensuring long-lasting performance in various conditions

    Easy to Use: Press the power button, and the green LED light will turn on. After a brief moment, insert the probe into the brake fluid, and the LED lights will illuminate based on the detected water level. Once the test is complete, the device automatically shuts off within 12 seconds

    Broad Application: Compatible with DOT3, DOT4, and DOT5.1 brake fluids, this tester is suitable for most cars, motorcycles, trucks, and more. Whether for home vehicle maintenance or professional repair work, it offers broad applicability to meet various testing needs

    Documents
    User Manual Download
    Specification Sheet Download
    Safety Guide Download
    Service & Support

    Warranty

    This product is backed by a 12-month limited warranty, covering defects in materials and workmanship under normal use.

    Technical Assistance

    Our dedicated support team is available to assist with product setup, operation guidance, and troubleshooting. Contact us via email or phone for prompt service.

    Documentation & Downloads

    Access essential resources including the user manual, technical specifications, and safety instructions in our online support center.

    Replacement Parts & Accessories

    We offer a full range of genuine replacement parts, including batteries, chargers, and compatible accessories to ensure long-term performance.

    Training & Tutorials

    Browse our library of how-to videos and maintenance tips to get the most out of your cordless drill.

    FAQs

    Find quick answers to common questions

    Product & Usage

    1. Are KRANK tools built for professional use?

    Yes, all our tools are engineered for heavy-duty performance and long-term reliability.

    2. Are KRANK tools safe to use for beginners?

    Yes, our tools are designed with safety features and easy handling in mind.

    3. Can KRANK tools be used in extreme conditions?

    Yes, they are tested to perform reliably in demanding environments.

    Maintenance & Accessories

    1. What maintenance is required for the tools?

    Regular cleaning and proper storage are usually enough to keep your tools in top condition.

    2. Can replacement parts or accessories be purchased separately?

    Yes, we provide compatible parts and add-ons to extend the life of your tools.

    3. Do you provide instruction manuals or usage guides?

    Every tool comes with a detailed user manual, and digital guides are available online.

    Warranty & Guarantee

    1. Do the tools come with a warranty?

    Every KRANK tool includes a 1-year warranty, with extended options available on select products.

    2. How do I register my KRANK tool for warranty coverage?

    You can register online using your product serial number for faster support.

    3. What does the warranty cover?

    It includes defects in materials and workmanship under normal use conditions.

    4. Is there an option to extend the warranty?

    Yes, extended warranty plans are available for select tools at checkout.

    Purchasing & Support

    1. How fast is shipping and delivery?

    Orders ship within 24 hours, and delivery typically takes 3–5 business days.

    2. Do you offer bulk or corporate purchasing options?

    Yes, KRANK provides special pricing and packages for business or team orders.

    3. How can I contact customer support if I need help?

    You can reach our support team by email or phone — we’re here to assist you.

    Can’t find your answer?

    Feel free to reach out to us!

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