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Black White Screen Brake Fluid Tester Pen For Automobile Brake Oil Detection

Product Price
$ 24.57 In Stock
SKUTY001158
MOQ1
KG/Piece0.15 KG
Returns30 days returns. Buyer pays for return shipping. If you use an Acctes shipping label, it will be deducted from your refund amount.
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Screen Type Black & White Screen Color Screen, Self-calibrating
Quantity

Black White Screen Brake Fluid Tester Pen

Professional Automobile Brake Oil Detection & Moisture Analysis Tool

Product Overview

The Black White Screen Brake Fluid Tester Pen is a compact, accurate diagnostic tool designed to quickly measure moisture content in automotive brake fluid. Excess moisture in brake fluid reduces boiling point, weakens braking performance, and creates dangerous driving hazards. This portable tester allows both DIY enthusiasts and professional mechanics to test brake fluid condition in seconds, helping you determine when brake fluid replacement is necessary.

Compatible with all common brake fluid types, this tester features a durable construction, clear readout, and simple operation, making it an essential tool for routine vehicle maintenance and safety inspections.

Key Features

  • ⚡ High Precision Detection: Accurately measures moisture content in brake fluid to identify dangerous contamination before it impacts braking performance

  • 📟 Clear Black & White Display: Easy-to-read screen provides unambiguous test results for quick interpretation

  • 🛡️ Durable Corrosion-Resistant Probe: Precision metal probe is treated to resist oil exposure and oxidation, delivering consistent, reliable readings over extended use

  • ✅ Wide Compatibility: Works with all common brake fluid types including DOT3, DOT4, DOT5.1, ENV6, and ENV4

  • 🔋 Energy-Saving Auto Power-Off: Automatically shuts down after 12 seconds of inactivity to extend battery life

  • 🚶 Ultra-Portable Design: Compact size (155 x 18mm) and lightweight construction make this tester easy to carry in a tool bag or glove compartment

  • 🎨 Color-Coded LED Result Indicators: Green, yellow, and red LEDs clearly communicate brake fluid condition at a glance

  • 🔔 Audio/Visual Alarm: Automatic alert when moisture content exceeds safe levels, requiring immediate brake fluid replacement

  • 🔧 Simple One-Button Operation: No specialized training required — get accurate results in 3 seconds or less

Result Interpretation Guide

Indicator ColorMoisture ContentRecommended Action
Green< 1.5%Brake fluid is in good condition — no replacement needed
Yellow1.5% — 3%Brake fluid is still usable — plan to replace within 6 months
Red> 3%Dangerous moisture level — replace brake fluid immediately

Technical Specifications

Product TypeBrake Fluid Moisture Tester Pen
Display TypeBlack & White LCD Screen + 5 LED Indicators
Compatible Brake Fluid TypesDOT3, DOT4, DOT5.1, ENV6, ENV4
Power SupplyDC 1.5V (1 x AAA Battery, not included with basic models)
Probe MaterialCorrosion-Resistant Precision Metal
Casing MaterialDurable Non-Slip Matte Black Plastic
Maximum Operating Temperature100°C
Product Dimensions155 x 18mm (Length x Diameter)
Auto Power-OffAfter 12 seconds of inactivity

Common Applications

For Individual Vehicle Owners

  • Routine brake system safety checks

  • Pre-purchase used vehicle inspections

  • Pre-trip safety checks for long distance driving

  • DIY brake fluid replacement verification

For Professional Mechanics

  • Quick brake system diagnostics during service

  • Shop routine maintenance inspections

  • Mobile automotive repair service use

  • Motorcycle and performance vehicle maintenance

How to Use

  1. Install the 1.5V AAA battery into the tester pen and replace the cap

  2. Remove the protective cap from the probe to expose the metal testing contacts

  3. Press the power button to turn on the tester. A solid green LED indicates normal operation; a blinking green LED indicates the battery needs replacement

  4. Fully submerge the probe into the brake fluid in your vehicle's reservoir

  5. Wait 2-3 seconds for the tester to analyze the moisture content and display the result

  6. Remove the tester from the reservoir and read the LED indicator result

  7. Wipe the probe clean with a lint-free cloth after use and replace the protective cap

Package Contents

  • 1 x Black White Screen Brake Fluid Tester Pen

  • *Battery not included with basic models (please check product listing for specific details)

Maintaining proper brake fluid condition is critical for driving safety. Regular testing with this accurate brake fluid tester helps you identify dangerous moisture contamination early, preventing brake failure and accidents. This tool is a must-have for any responsible vehicle owner or automotive professional.

Payment

  1. We accept a variety of safe and convenient payment methods to meet your different transaction needs, including Alipay, Visa, MasterCard, Telegraph Transfer (T/T), Western Union, and other mainstream payment channels. We also support customized payment solutions according to your actual needs. If you have special payment requirements (such as other payment methods not listed), please feel free to consult our customer service window, and we will provide you with the most suitable payment plan.

  2. Before completing the payment, please carefully check and confirm the accuracy of the payment amount, your account information, and the receiving address. Any errors in the above information may lead to payment failure, payment delay, or delivery errors. We will not be responsible for any losses caused by incorrect information provided by the buyer.

  3. If you encounter any problems during the payment process (such as payment failure, payment stuck, etc.), please contact our customer service in a timely manner. We will respond to you within 24 hours and help you solve the problem to ensure the smooth progress of your payment.

Shipping

  1. All orders will be processed and shipped within 3-5 business days after we receive your full payment (excluding weekends, public holidays, and force majeure events such as natural disasters and logistics outages). Before shipment, our professional quality inspection team will conduct a comprehensive inspection of the goods to ensure that the product quality meets the standard and there is no damage or missing parts.

  2. We only ship goods to the confirmed order address. Please make sure that your order address is consistent with your actual shipping address. If you need to modify the shipping address, please contact our customer service in a timely manner before the order is shipped. Once the goods are dispatched, we will not be able to change the shipping address, and any losses caused thereby shall be borne by the buyer.

  3. For international shipments, the delivery time is affected by factors such as customs clearance speed, local logistics efficiency, and regional policy restrictions. Therefore, we cannot guarantee the exact delivery time. We will provide you with a logistics tracking number immediately after the goods are shipped, so you can check the real-time logistics status at any time.

  4. Any customs duties, import taxes, or other additional fees incurred during the international transportation of goods shall be borne by the buyer. We will provide all necessary documents (such as commercial invoices) required for customs clearance to assist you in completing the customs clearance process smoothly. If you need help with customs clearance-related issues, please contact our customer service.

  5. During the transportation process, if the goods are damaged, lost, or have missing parts due to logistics reasons, please take photos and keep the relevant logistics documents in a timely manner, and contact our customer service immediately. We will verify the situation and provide you with solutions such as return, replacement, or refund according to the actual situation.

  6. Please pay attention to the logistics tracking information. If you find any abnormalities (such as delayed delivery, wrong delivery address, etc.), please contact us in time, and we will coordinate with the logistics company to solve the problem as soon as possible.

Terms Of Sale

  1. If you have any questions about the product, payment, shipping, or other related matters, please contact our customer service in a timely manner. We will respond to you within 24 hours and provide professional solutions to ensure that your problems are properly resolved.

  2. If you do not receive the goods within the expected time, or if you are not satisfied with the received goods (such as product damage, inconsistent specifications, etc.), please do not open a dispute or leave neutral/negative feedback without communication. Contact us first, and we will actively coordinate and solve the problem for you to your satisfaction.

  3. If you receive defective goods (a rare occurrence), please provide clear photos that can show the problem, and we will provide you with a full refund or free replacement according to the actual situation. No additional fees will be charged to you during the process.

Returned & Refund

Your satisfaction is our top priority. All goods are strictly inspected and tested before shipment to ensure that they meet the quality standards.

  1. If you are not satisfied with the goods received, or if the product does not match the description, please contact us first to confirm the return address and logistics method before returning the goods. Do not return the goods without authorization, otherwise, we will not be able to process your return and refund normally.

  2. All returned goods must be in their original condition (without damage, missing parts, or signs of use), and you need to provide the logistics tracking number and a detailed description of the return reason.

  3. The shipping cost for returning the goods shall be borne by the buyer. If the return is caused by our own reasons (such as wrong product, quality problems), we will bear the return shipping cost and provide you with a full refund or free replacement.

  4. If the goods are damaged, lost, or have missing parts due to the buyer’s improper use, storage, or transportation, the buyer shall be responsible for the corresponding losses, and we will not provide a full refund or replacement service.

Feedback

  1. Customer satisfaction is the foundation of our development. Your feedback is very important to us. Whether it is praise, suggestions, or complaints, please feel free to contact us. We will carefully listen to your opinions and continuously optimize our products and services.

  2. If you are satisfied with our products and services, we would appreciate it if you could leave positive feedback. If you have any dissatisfaction, please contact us before leaving neutral or negative feedback—we will do our best to solve the problem and give you a satisfactory reply.



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