• $43.25
  • Ships from China.
    Price alert
    Shop it at NeweggBusiness.

    Meet Your Seller

    Automobile brake fluid detector BF100 testing pen moisture content tester diagnostic instrument brake fluid digital display

    • High Precision Sensor & 3-Color LED Display Quickly and accurately assess brake fluid quality with clear visual indicators (Green/Yellow/Red) for water content levels.
    • Multi-Type Fluid Compatibility Supports DOT3, DOT4, and DOT5.1 brake fluids, making it suitable for most passenger cars and motorcycles.
    • One-Hand Operation & Portable Design Compact size (6.7 x 1.8 x 0.87 inches) with non-slip grip allows for easy, stable testing anywhere.
    • Replaceable Battery & LED Flashlight Powered by 2x AAA batteries; built-in flashlight enables testing in low-light conditions.
    • Durable Build with Nickel-Plated Probe Corrosion-resistant sensor ensures long-term reliability; wipe-clean design prevents residue interference.
    +
    +
    Overview
    Specs
    Reviews
    avatar

    Any questions? Our AI beta will help you find out quickly.

    Ensure Your Braking Safety with the OBDResource Brake Fluid Tester

    Your vehicle's brake fluid is critical to safe driving. Moisture contamination can lead to brake failure, longer stopping distances, or even accidents. The OBDResource Brake Fluid Tester provides a fast, accurate, and easy way to check your brake fluid condition before hitting the road.

    How It Works:

    This tester uses a high-precision sensor to measure water content in brake fluid. Results are displayed instantly on a bright 3-color LED screen:

    1. Green Good condition, safe to use
    2. Green/Yellow ~2% water content, still functional
    3. Green/Yellow/Red ~3% water content, replacement recommended
    4. Red 4% water content, replace immediately

    Wide Compatibility:

    Supports DOT3, DOT4, and DOT5.1 brake fluids. Whether you drive a family sedan, SUV, or motorcycle, this tool is ready to help.

    Simple 5-Step Operation:

    1. Insert 2x AAA batteries (not included)
    2. Press and hold power button for 3 seconds to turn on
    3. Press power button to select fluid type (DOT3/DOT4/DOT5.1)
    4. Insert probe into brake fluid reservoir
    5. Read LED result no complicated numbers or apps needed

    Bonus Features:

    1. Built-in LED flashlight double-click power button to activate
    2. Auto power-off saves battery life
    3. Non-slip ergonomic design comfortable for repeated use
    4. Easy to clean wipe probe after each test to maintain accuracy

    Technical Specifications:

    1. Material: Industrial-grade ABS + nickel-plated metal probe
    2. Display: 3-color LED indicator
    3. Test Range: DOT3, DOT4, DOT5.1
    4. Operating Temperature: 060°C (32140°F)
    5. Power: 2x AAA batteries (replaceable)
    6. Product Size: 6.7 x 1.8 x 0.87 inches


    Warranty & Returns

    Warranty, Returns, And Additional Information

    Warranty

    • Please contact the Seller directly for warranty information. Warranty information may also be found on the Manufacturer's website.
    • CONTACT

    Return Policies

    Manufacturer Contact Info

    LOADING...