logo

Portable Automotive Brake Fluid Tester Pen For Car Brake Oil Inspection

Product Price
$ 32.86 In Stock
SKUTY001161
MOQ1
KG/Piece0.40 KG
Returns30 days returns. Buyer pays for return shipping. If you use an Acctes shipping label, it will be deducted from your refund amount.
See details
Style Digital Display Version Portable Digital Version Red Screen Digital Version Basic Version
Quantity

Portable Automotive Brake Fluid Tester Pen

Product Overview

The Portable Automotive Brake Fluid Tester Pen is a professional diagnostic tool designed to quickly and accurately measure moisture content in brake fluid, helping you maintain safe braking performance and prevent dangerous brake failure. Compact, lightweight, and easy to use, it is perfect for both DIY automotive enthusiasts and professional mechanics.

Brake fluid naturally absorbs moisture over time, which lowers its boiling point and reduces braking effectiveness. This tester gives you instant results, allowing you to determine if your brake fluid needs to be replaced before it creates a safety hazard — ideal for regular vehicle maintenance, especially before long trips or winter driving.

Key Features

  • ✓ Ultra-portable pen design fits easily in a glove compartment, tool bag, or pocket

  • ✓ Provides accurate moisture content readings in as little as 3 seconds

  • ✓ Clear LED/LCD display with color-coded results for easy interpretation

  • ✓ Compatible with all common glycol-based brake fluids: DOT 3, DOT 4, and DOT 5.1

  • ✓ Durable workshop-grade construction with rugged ABS plastic housing

  • ✓ Battery-powered with low battery warning function

  • ✓ Simple one-step operation — no specialized training required

  • ✓ Eliminates guesswork compared to traditional visual or experience-based inspection

Technical Specifications

SpecificationDetails
Compatible Brake Fluid TypesDOT 3, DOT 4, DOT 5.1 (glycol-based)
Detection Range0% - 4% moisture content
Measurement Accuracy±0.3% - ±1% depending on model
Result IndicationColor-coded LED lights:
0-2% (Green): Good condition, safe for use
2-3% (Yellow/Yellow-Alert): Moderate moisture, recommended replacement soon
>3% (Red/Red-Alert): High moisture, replace immediately
Power Requirements1 x 1.5V AAA battery (not included)
Operating Temperature0°C ~ 50°C (32°F ~ 122°F)
Probe ExtensionUp to 220mm for easy access to brake fluid reservoirs
MaterialDurable impact-resistant ABS plastic
Weight50g - 100g (ultra-lightweight)
Dimensions (Pen Style)Approx. 150mm x 20mm (extended models up to 380mm)
CertificationCE, RoHS, ISO certified

Common Applications

👤 Personal Use

  • Routine at-home vehicle maintenance

  • Pre-trip safety inspections for road trips

  • Pre-winter vehicle preparation

  • Used car purchase inspections

  • DIY brake fluid replacement checks

🏭 Professional Use

  • Automotive repair workshops and garages

  • Vehicle inspection stations

  • Fleet maintenance for commercial vehicles

  • Automotive service centers and 4S shops

  • Mobile roadside assistance services

How to Use

  1. Clean the brake fluid reservoir cap and remove it to access the fluid

  2. Fully extend the probe, clean and dry it before testing

  3. Insert the probe approximately 2cm into the brake fluid

  4. Wait 3 seconds for the LED indicators to display your result

  5. Interpret the result based on the color code: green = good, yellow = replace soon, red = replace immediately

  6. Remove the probe, clean it thoroughly, and replace the brake fluid reservoir cap

Note: This tester is not compatible with DOT 5 silicone-based brake fluid. Always calibrate your tester before first use according to the included instructions.

Frequently Asked Questions

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

Brake fluid is hygroscopic, meaning it naturally absorbs moisture from the air over time. Increased moisture lowers the boiling point of brake fluid, which can cause brake fade and even total brake failure under heavy braking. Regular testing ensures your brake system remains safe.

Q: When should I replace my brake fluid?

Most vehicle manufacturers recommend replacing brake fluid every 2-3 years. If your tester shows moisture content above 3%, you should replace your brake fluid immediately regardless of age, as it already presents a safety risk.

Q: Do I need professional training to use this tool?

No, this brake fluid tester pen is designed for simple, intuitive use. Even beginner DIY automotive enthusiasts can get accurate, reliable results in seconds with no specialized knowledge.

Q: Will this tester work on my vehicle?

This tester works with almost all passenger cars and light trucks that use DOT 3, DOT 4, or DOT 5.1 glycol-based brake fluid, which covers 99% of modern vehicles on the road today.

Package Contents

<ul style="font-size: 16

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.



Home

Categories

Cart

Member