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    Brake Fluid Liquid Tester Pen

    Cheap price brake fluid liquid tester pen for sale online. The brake fluid tester pen can widely test the percentage of moisture in DOT3, DOT4, DOT5.1 brake fluid. This brake fluid moisture tester is convenient for personal use and broadly applied in individual workshops, repair factories and dealer workshops.
    SKU: SISCO-BFT-SCCSB
    $31.38
    This product has a minimum quantity of 10
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    🚚 Free shipping
    🔙 30-day returns
    📅 Delivery: 7-12 days
    Overview


    SISCO digital brake fluid tester comes with 5 LED indicators to show the percentage of moisture in the brake fluid. It can check the health status of your car brake fluid quickly, and remind you to change the brake fluid in time. This car brake fluid tester is small in size and easy to carry. Press the button and insert it, you can see the result of water content in your brake fluid. 

    Brake fluid liquid tester pen detail

    High-Precision Metal Probe Ensures Accurate and Stable Detection

    • High-Precision Metal Probe: The finely engineered metal tip provides accurate signal collection from the brake fluid, reducing noise and improving repeatability. Even with minimal water content, it ensures stable and reliable readings.
    • Corrosion-Resistant Design: SISCO brake fluid pen is made from metals, the probe resists chemical corrosion from brake fluid and impurities. A sealed connection between the probe and handle prevents fluid leakage into the electronics, enhancing overall durability.
    • Fast Response: With its sensitive probe and optimized circuitry, the tester delivers stable results within seconds of contacting the fluid. This quick reaction time allows multiple vehicles or samples to be tested efficiently, improving productivity during routine checks.
    • Easy to Clean and Maintain: The smooth surface of the probe can be easily wiped with a lint-free cloth or isopropyl alcohol swab to maintain accuracy.
    Brake fluid liquid tester pen detail

    The Brake Fluid Tester Pen is Made of Durable ABS material, Drop-Resistant and Rust-Resistant

    • Durable ABS Housing: Made with high-quality ABS plastic, the tester pen is lightweight yet strong, providing excellent resistance to drops and everyday wear.
    • Impact-Resistant Design: The sturdy ABS body protects the internal circuitry from accidental falls or workshop impacts, ensuring reliable long-term use.
    • Rust-Free Construction: Unlike metal casings, ABS material does not corrode or rust when exposed to brake fluid or humid environments, keeping the tester in good condition.
    • Comfortable Grip: ABS plastic also offers a smooth, ergonomic grip, making the tester easy to hold and operate during frequent checks.

    Dimension

    Brake fluid liquid tester pen size

    Applications

    SISCO brake fluid tester is widely used in automotive workshops, inspection stations, fleet maintenance, and by car owners for routine vehicle care. It quickly detects moisture content or boiling point changes in brake fluid, helping ensure reliable braking performance and compliance with DOT standards (DOT 3, DOT 4, DOT 5.1). This makes it an essential tool for mechanics, inspectors, and drivers to maintain safety and prevent brake failure.

    Brake fluid tester for inspection stations

    Inspection Stations

    Brake fluid tester for fleet maintenance

    Fleet Maintenance

    Brake fluid tester for automotive workshops

    Automotive Workshops

    Brake fluid tester for routine vehicle care

    Routine Vehicle Care

    Specs

     

    Model SISCO-BFT-SCCSB
    Material ‎ABS plastic
    Maximum Supply Voltage ‎1.5V
    Measurement Accuracy ‎±1%
    Output Type ‎LED indicator
    Temperature 0~50℃
    Dimensions 5.9*0.74 inch
    Weight 50g
    FAQs

    Q1: What is a brake fluid tester?
    A1: A brake fluid tester is a tool used to check the condition of brake fluid in a vehicle. It measures factors like water content or boiling point, since moisture in brake fluid lowers its effectiveness and can lead to brake failure. By providing a quick pass/fail or percentage reading, it helps determine whether the brake fluid is safe to use or needs to be replaced.

    Q2: What types of brake fluid can a brake fluid tester test?
    A2: Most brake fluid testers are designed to test glycol-based fluids, including DOT 3, DOT 4, and DOT 5.1. These are the most common types used in passenger cars and light trucks. They are not suitable for DOT 5 silicone-based brake fluid, which requires different testing methods.

    Q3: How does a brake fluid tester work?
    A3: A common brake fluid tester works by submerging its electrodes into the brake fluid, then measuring the electrical conductivity of the fluid. Because brake fluid naturally absorbs water over time, this water increases its conductivity. The tester uses a traffic light system of LEDs to indicate the percentage of water content and the overall condition of the fluid, with green meaning no water and red indicating a high level of moisture that requires a brake fluid flush.

    Tips: Why do I need to test my brake fluid?

    You need to test your brake fluid because it is hygroscopic, meaning it absorbs moisture over time. Even a small amount of water contamination can:

    • Lower the boiling point, causing vapor lock or brake fade during hard braking.
    • Reduce braking efficiency, especially under high temperatures.
    • Increase corrosion inside the brake system, damaging components like calipers, master cylinders, and ABS units.

    Regular testing ensures your brake fluid is still safe, helps prevent costly repairs, and most importantly, maintains reliable braking performance and driving safety.

    Warranty

    Thank you for buying industrial test and measurement equipment on SISCO.com, all products sold by SISCO and the partner cover a 12 months warranty, effective from the date of receiving the products.


    What is covered?

    SISCO is responsible for providing free spare parts, and free technical support to assist the customer to repair the defective products until the problem is solved.


    What is not covered?

    • Product purchased from anyone other than a SISCO store or a SISCO authorized reseller.
    • Expendable parts.
    • Routine cleaning or normal cosmetic and mechanical wear.
    • Damage from misuse, abuse or neglect.
    • Damage from use of parts other than SISCO approved.
    • Damage from use outside the product’s usage or storage parameters.
    • Damage from use of parts not sold by SISCO.
    • Damage from modification or incorporation into other products.
    • Damage from repair or replacement of warranted parts by a service provider other than a SISCO authorized service provider.
    • Damage caused by the application environment not meeting the product usage requirements and the failure to perform preventive maintenance.
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